Timeline: Houthi Attacks and U.S. Responses

Tensions soared between the Houthi militia in Yemen and the United States after Houthis seized the crew of a commercial shipping vessel on Nov. 19, 2023. Houthis launched attacks–using drones, missiles, and small boats–on commercial shipping and naval warships in the Red Sea, one of the world’s most important waterways for international commerce. The Houthis initially claimed that they were targeting commercial ships on their way to or linked to Israel to show solidarity with Palestinians in Gaza. The United States responded on December 18 by launching Operation Prosperity Guardian, a coalition of more than 20 countries with a mandate to protect international shipping. Secretary of Defense Lloyd Austin III said its mission was “to jointly address security challenges in the southern Red Sea and the Gulf of Aden, with the goal of ensuring freedom of navigation for all countries and bolstering regional security and prosperity.”

Houthi leader Abdul Malik al Houthi (left)

On January 11, 2024, the United States mobilized Operation Poseidon Archer, a separate coalition willing to conduct offensive operations to degrade Houthi military capabilities. It included the United Kingdom, Australia, Bahrain, and the Netherlands. “It is something that CENTCOM has named in terms of multilateral strikes and dynamic strikes within Houthi-controlled areas in Yemen,” Deputy Pentagon press secretary Sabrina Singh told reporters on January 25. The coalition launched more than 10 airstrikes on Houthi missile, radar, and storage facilities in January.

The Operation Poseidon Archer signaled that the United States would “not tolerate attacks on our personnel or allow hostile actors to imperil freedom of navigation,” President Joe Biden said on January 11. “I will not hesitate to direct further measures to protect our people and the free flow of international commerce as necessary.” Biden also repeatedly warned regional players backed by Iran, including the Houthis, against widening the Middle East war between Israel and Hamas in Gaza. But the attacks persisted. Houthi leaders claimed that U.S. pressure would not change their campaign in the Red Sea, through which about 30 percent of the world’s commercial shipping passes en route to the Suez Canal.

 

October 2023

October 19: Houthis fired three land-attack cruise missiles and several drones from Yemen, reportedly targeting Israel. The USS Carney intercepted the missiles and drones.

October 31: Houthis fired an unspecified number of ballistic missiles and drones at Israel. The Houthis vowed to “continue to carry out qualitative strikes with missiles and drones until the Israeli aggression stops.” Israel intercepted all of the aerial threats, which included one surface-to-surface missile.

 

November 2023

November 8: Houthis shot down a U.S. drone. They claimed that the drone, an MQ-9 Reaper, was in Yemeni airspace.

November 14: Houthis launched a surface-to-surface missile towards Eilat, Israel. The Israeli Defense Forces (IDF) intercepted the missile before it entered Israeli airspace.

November 15: The USS Thomas Hudner intercepted a drone in the Red Sea that had been launched from Yemen.

November 19:  Houthis seized the Galaxy Leader, a British-owned, Japanese-operated cargo ship, in the Red Sea and took 25 crew members hostage. They claimed that the vessel was linked to Israel and a “legitimate target.” The British company that owns the ship had links to Abraham Ungar, an Israeli businessman, although the ship was leased to Nippon Yusen (NYK), a Japanese company. The Houthis vowed to continue targeting Israel-linked vessels until the Israeli campaign in Gaza ended.

November 22: The USS Thomas Hudner intercepted several drones launched from Houthi-controlled areas of Yemen. No injuries or damage were reported. The same day, the IDF claimed to have shot down a Houthi cruise missile over the Red Sea.

November 26: Houthis fired two ballistic missiles at the USS Mason while it was responding to a distress call from the Central Park, a commercial tanker operated by Zodiac Maritime, an international shipping company owned by Israeli billionaire Eyal Ofer.

November 29: The USS Carney intercepted an Iranian-produced drone launched from Houthi-controlled areas of Yemen.

 

December 2023

December 1: Israel struck an arms depot in Sanaa, the Yemeni capital. The Houthis denied the report by Saudi media.

December 3: Houthis fired ballistic missiles at three commercial ships in the Red Sea–the Unity Explorer, a British-owned and -operated bulk carrier; Number 9, a British-owned and -operated container ship; and Sophie II, a Japanese-owned and -operated bulk carrier. The USS Carney responded to their distress calls. It also shot down three drones; the target of the drones was unclear.

December 7: The U.S. Department of Treasury sanctioned 13 individuals for providing funds to the Houthis.

December 11: Houthis fired an anti-ship cruise missile that hit the M/T Strinda, a Norwegian-flagged commercial tanker, in the Bab al-Mandab Strait of the Red Sea. The USS Mason responded to its mayday call. 

December 13: Two missiles fired from Houthi-controlled areas of Yemen narrowly missed the Ardmore Encounter, a Marshall Islands-flagged tanker. The USS Mason shot down a drone during the incident.

December 14: Houthis launched a missile at the M/V Maersk Gibraltar, a Hong Kong-flagged cargo vessel, after firing a ballistic missile north of the Bab al-Mandab.

December 15: Houthis struck two Liberian-flagged tankers in the Red Sea. A Houthi drone struck the M/V Al Jasra, which was set ablaze. Houthis also fired two ballistic missiles toward the Bab al-Mandab Strait. One hit the M/V Palatium III. The USS Mason responded to the second incident.

December 16: The USS Carney intercepted 14 drones that had been launched in a wave from Houthi-controlled areas of Yemen. The British HMS Diamond also shot down a drone.

December 18: The United States established Operation Prosperity Guardian, a multinational initiative focused on security in the Red Sea. It included the United States, Britain, Bahrain, Canada, France, Italy, the Netherlands, Norway, the Seychelles, and Spain. Houthis also claimed to have fired drones at the MSC Clara and Swan Atlantic, two commercial vessels.

December 19: The United States, European Union, North Atlantic Treaty Organization, Australia, the Bahamas, Japan, Liberia, New Zealand, South Korea, Singapore, and others jointly condemned Houthi maritime aggression. The 44 signatories represented the countries that flagged the most commercial vessels transiting the Red Sea.

December 23: The USS Laboon intercepted four drones from Houthi-controlled Yemen. It also responded to distress calls from the M/V Blaamanen, a Norwegian-flagged tanker, and M/V Saibaba, an Indian-flagged tanker that had been targeted by Houthi drones.

December 26: Houthis claimed responsibility for an attack on the United VIII, a commercial tanker. They also launched a drone on southern Israel, which was intercepted over the Red Sea.

December 28: The USS Mason intercepted one drone and one anti-ship ballistic missile fired by Houthis over the Red Sea. The U.S. Treasury sanctioned one individual and three entities for facilitating Iranian “financial assistance” to the Houthis.

December 31: Houthis deployed on four small boats attacked the Maersk Hangzhou, a Singapore-flagged container ship, and attempted to board the vessel. Helicopters from the USS Eisenhower responded and sank three of the four boats, killing their crews.

January 2024

January 1: The Alborz, an Iranian warship, entered the Red Sea. Its mission was not specified.

January 2: Houthis fired two anti-ship ballistic missiles into the southern Red Sea. No commercial ships reported damage.

January 3: The United States and 13 partners issued a joint statement warning the Houthis to cease maritime aggression or face a military response. Australia, Bahrain, Belgium, Canada, Denmark, Germany, Italy, Japan, Netherlands, New Zealand, Republic of Korea, Singapore, and the United Kingdom joined the statement.

January 4: Houthis launched a drone that came within a few miles of U.S. Navy and commercial vessels before detonating in the Red Sea. The incident marked the first use by the Houthis of an unmanned surface vessel.

January 6: The USS Laboon intercepted a drone that had been launched from Houthi-controlled Yemen.

January 9: Houthis launched a large-scale attack, consisting of 18 drones, two anti-ship cruise missiles, and one anti-ship ballistic missile. They were all shot down by U.S. and British forces.

January 11: U.S. Navy SEALs boarded and seized a sailboat transporting weapons from Iran to the Houthis. The operation, off the coast of Somalia, marked the first seizure of Iranian weapons since the Houthis began their Red Sea attacks in November 2023. 

January 11-12: The United States and United Kingdom – with support from the Netherlands, Canada, Bahrain, and Australia – launched more than 150 precision-guided munitions strikes on 60 targets, including radars, missile and drone launch sites, and weapons storage facilities in Yemen. The joint operation was dubbed “Operation Poseidon Archer.”

January 12: Houthis mistakenly fired a missile at a Panamanian-flagged tanker carrying Russian oil in a missile attack. The USS Carney conducted a strike on a Houthi radar in Yemen. The U.S. Treasury sanctioned two companies–based in Hong Kong and the United Arab Emirates–that have shipped Iranian commodities to the Houthis.

January 13: U.S. President Joe Biden said that Washington had delivered a back-channel message to Iran about Houthi maritime aggression.

January 15: Houthis fired an anti-ship ballistic missile and struck the M/V Gibraltar Eagle, a U.S.-owned and-operated bulk carrier flagged by the Marshall Islands.

January 16: U.S. forces destroyed four anti-ship ballistic missiles that were prepared to launch from Houthi-controlled Yemen. Houthis launched an anti-ship ballistic missile into the southern Red Sea and struck the M/V Zografia, a Maltese-flagged bulk carrier.

January 17: Houthis attacked the M/V Genco Picardy, a U.S.-owned and -operated bulk carrier flagged by the Marshall Islands. The drone crashed into the vessel southeast of Aden. The same day, U.S. forces struck 14 missile sites in Houthi-controlled Yemen. The United States formally named the Houthis a ‘Special Designated Global Terrorist Organization,’ which was scheduled to take effect on February 16, 2024.

January 18: U.S. forces struck two Houthi anti-ship missiles that were being prepared for launch in Yemen. Houthis fired two anti-ship missiles at the M/V Chem Ranger, a U.S.-owned and Greek-operated bulk carrier flagged by the Marshall Islands. In a televised speech, Houthi leader Abdul Malek al Houthi thanked God “for this great blessing and great honor — for us to be in a direct confrontation with Israel and America.” He claimed that pressure would not change the Houthi stance.

January 19: U.S. forces destroyed three Houthi missiles and launchers in Yemen as they were primed to attack commercial and military vessels in the Red Sea.

January 20: U.S. forces destroyed a Houthi anti-ship missile aimed at the Gulf of Aden.

January 21: U.S. Central Command confirmed the death of two Navy SEALs who were swept into the Arabian Sea on January 11 as the SEALs seized and boarded a sailboat transporting Iranian missile parts and weapons to the Houthis.

January 22: Vice Admiral Brad Cooper claimed that Iran was “very directly involved” in the Houthis’ Red Sea attacks. The United States denied a Houthi claim that they had attacked the M/V Ocean Jazz, a U.S.-flagged bulk carrier.

January 23: U.S. forces struck two anti-ship missiles in Yemen as they were prepared for launch at targets in the Red Sea.

January 24: Iran reportedly informed Washington via back-channels that it is not seeking a war. Houthis fired three ballistic missiles at the M/V Maersk Detroit, a  U.S.-flagged, -owned and -operated container ship. The USS Gravely intercepted two of the missiles; the third landed in the Red Sea. Houthis ordered U.S. and British staff of Sanaa-based humanitarian organizations to leave Yemen within a month.

January 25: The U.S. Treasury, jointly with the United Kingdom, sanctioned four Houthi military officials. National Security Advisor Jake Sullivan flew to Thailand to discuss the Houthi attacks with Chinese officials.

January 26: Houthis fired a ballistic missile toward the USS Carney, which shot down the missile. Houthis attacked the M/V Marlin Luanda, a Marshall Islands-flagged and Bermuda-owned tanker, with an anti-ship ballistic missile. The attack set the ship on fire, but the USS Carney–along with French and Indian vessels–extinguished the blaze.

January 27: The United States struck a Houthi anti-ship missile aimed at the Red Sea. A British warship, the HMS Diamond, repelled a Houthi attack and shot down one drone over the Red Sea.

January 29: The Pentagon rejected a Houthi claim that its militants had attacked the USS Lewis B. Puller.

January 30: Houthis fired one anti-ship cruise missile toward the Red Sea. The USS Gravely intercepted the missile, and there was no damage.

January 31: The United States struck a Houthi surface-to-air missile that was being prepared for launch and was considered “an imminent threat” to U.S. aircraft operating in the region.

February 2024

February 1: U.S. forces shot down one drone over the Gulf of Aden. Later, U.S. forces intercepted a sail drone headed toward international shipping lanes in the Red Sea. Houthis fired one ballistic missile at the Koi, a Liberian-flagged and Bermuda-owned container ship.

February 2: Houthis shot a ballistic missile at southern Israel. The IDF intercepted the missile over the Red Sea. The same day, the U.S.S. Carney shot down one drone over the Gulf of Aden, U.S. forces struck four Houthi drones in Yemen, and the U.S.S. Laboon shot down seven drones over the Red Sea. There were no injuries or damage reported.

February 3: U.S. forces destroyed six cruise missiles in Houthi-controlled Yemen. 

The United States and United Kingdom–with support from Australia, Bahrain, Canada, Denmark, the Netherlands, and New Zealand–struck 36 Houthi targets in 13 locations in Yemen. The strikes targeted storage facilities, missile launchers, air defense systems, and radars. “This collective action sends a clear message to the Houthis that they will continue to bear further consequences if they do not end their illegal attacks on international shipping and naval vessels,” said Lloyd Austin, U.S. Secretary of Defense. 

February 4: U.S. forces conducted three air strikes in Houthi-controlled Yemen, destroying five anti-ship cruise missiles and one land attack cruise missile.

February 5: U.S. forces struck two Houthi unmanned surface vehicles (USVs) in Yemen. 

February 6: Houthifired six anti-ship ballistic missiles toward the Red Sea. Three missiles targeted the M/V Star Nasia, a Marshall Islands-flagged, Greek-owned and -operated bulk carrier. The USS Laboon intercepted one of the missiles. Another three missiles targeted the M/V Morning Tide, a Barbados-flagged, British-owned cargo ship.

February 8: U.S. forces struck four Houthi unmanned surface vehicles (USV) and seven Houthi anti-ship cruise missiles in Yemen. 

February 9: U.S. forces destroyed two Houthi unmanned surface vehicles (USV), four Houthi anti-ship cruise missiles, and one Houthi land attack cruise missile in Yemen. 

February 10: U.S. forces struck two Houthi unmanned surface vehicles (USV) and thrree Houthi anti-ship cruise missiles north of Al Hudaydah, Yemen.

February 12: Houthis fired two missiles toward the M/V Star Iris, a cargo ship owned by a Greek company flagged in the Marshall Islands. The M/V Star Iris received minor damages but continued its voyage to Iran after the strike.

February 13: U.S. forces destroyed an anti-ship cruise missile in Houthi-controlled Yemen as it was prepared to launch. Later that day, Houthis launched an anti-ship ballistic missile into the Gulf of Aden. U.S. forces did not intercept the missile because it was not projected to hit any ships. 

February 14: U.S. forces destroyed seven anti-ship cruise missiles, three drones, and one explosive unmanned surface vehicle (USV) in Houthi-controlled Yemen. The weapons were prepared to launch against ships in the Red Sea.

February 15: Houthis launched an anti-ship ballistic missile toward the M/V Lycavitos, a bulk carrier owned by a British company flagged in Barbados. The M/V Lycavitos received minor damage but continued its voyage after the strike. The same day, U.S. forces launched two strikes against three anti-ship cruise missiles in Houthi-controlled Yemen. The missiles were prepared to launch against ships in the Red Sea.

February 16: Houthis launched four anti-ship ballistic missiles into the Red Sea. Three missiles targeted the M/T Pollux, a commercial vehicle owned by a Danish company flagged in Panama. The missiles did not hit the M/T Pollux or any other ships.

U.S. forces struck one anti-ship cruise missile and one unmanned surface vehicle (USV) in Houthi-controlled Yemen. The missile and USV presented immediate threats to military and commercial ships in the Red Sea, according to U.S. Central Command.

February 17: U.S. forces launched five strikes and destroyed three anti-ship cruise missiles, one unmanned underwater vehicle (UUV), and one unmanned surface vehicle (USV) in Houthi-controlled Yemen. This was the first observation of Houthi UUVs.

February 18: Houthis launched two anti-ship ballistic missiles toward M/V Rubymar, a bulk carrier owned by a British company and flagged in Belize. One of the missiles struck and damaged the M/V Rubymar, causing an 18 mile oil slick. U.S. forces responded to the M/V Rubymar’s distress call and transported its crew to a nearby port.

February 19: Houthis launched two anti-ship ballistic missiles against the M/V Sea Champion, a grain carrier owned by a U.S. company and flagged in Greece. The M/V Sea Champion received minor damages but continued its voyage to Aden, Yemen. The M/V Sea Champion delivered grain, its eleventh delivery of humanitarian aid to Yemen since 2018.

The same day, U.S. forces destroyed a surface-to-air missile launcher in Houthi-controlled Yemen. Houthis launched one anti-ship ballistic missile into the Red Sea, but it did not hit any ships.

Later, a Houthi attack drone struck the M/V Navis Fortuna, a bulk carrier owned by a U.S. company and flagged in the Marshall Islands. The M/V Navis Fortuna received minor damage but continued its voyage.

U.S. forces destroyed one attack drone in Western Yemen that was prepared to launch against ships in the Red Sea. U.S. and coalition forces destroyed ten attack drones in the Red Sea and Gulf of Aden.

February 20: The USS Laboon shot down one Houthi anti-ship cruise missile headed in its direction.

February 21: U.S. forces launched four strikes into Houthi-controlled Yemen, which destroyed seven anti-ship cruise missiles and one anti-ship ballistic missile launcher. These weapons were prepared to launch into the Red Sea. The same day, U.S. forces shot down an attack drone in self-defense. 

February 22: U.S. forces intercepted six Houthi attack drones in the Red Sea. The drones were likely targeting U.S. warships and presented an imminent threat. 

Later, Houthis fired two anti-ship ballistic missiles into the Gulf of Aden. The missiles struck the M/V Islander, a cargo carrier owned by a British company and flagged in Palau. There was one minor injury, but the ship continued its voyage. 

The same day, U.S. forces struck four Houthi drones and two anti-ship cruise missiles in Houthi-controlled Yemen. The weapons were prepared to launch into the Red Sea. 

February 23: U.S. forces shot down three Houthi attack drones in the Red Sea. The drones were near multiple commercial shipping vessels. 

Later, U.S. forces destroyed seven Houthi anti-ship cruise missiles in Yemen. The missiles were prepared to launch into the Red Sea. 

February 24: The U.S.S. Mason shot down one Houthi anti-ship ballistic missile in the Gulf of Aden. The missile targeted the M/V Tom Thor, a chemical/oil tanker owned by a U.S. company and flagged in the United States.

On the same day, the United States and United Kingdom–with support from Australia, Bahrain, Canada, Denmark, the Netherlands, and New Zealand–struck 18 Houthi targets in 8 locations in Yemen. The strikes targeted weapons storage facilities, drones, air defense systems, radars, and a helicopter.  “We will continue to make clear to the Houthis that they will bear the consequences if they do not stop their illegal attacks, which harm Middle Eastern economies, cause environmental damage, and disrupt the delivery of humanitarian aid to Yemen and other countries,” said Defense Secretary Austin. 

February 25: U.S. forces shot down two attack drones over the southern Red Sea. 

Houthis launched a second anti-ship ballistic missile targeting the M/V Tom Thor. The missile landed in the water.

February 26: U.S. forces destroyed three unmanned surface vehicles (USV), two anti-ship cruise missiles, and one attack drone. The USVs and missiles were prepared to launch into the Red Sea, and the attack drone had already launched into the Red Sea.

February 27: U.S. aircraft and a coalition warship shot down five Houthi attack drones in the Red Sea.

February 29: U.S. forces intercepted a Houthi attack drone over the southern Red Sea. Also, U.S. forces launched two strikes against six mobile anti-ship cruise missiles in Houthi-controlled Yemen. The missiles were prepared to launch towards the Red Sea. 

March 2024

March 1: U.S. forces destroyed a surface-to-air missile in Houthi-controlled Yemen. The missile was prepared to launch toward the Red Sea. Also, Houthis launched one anti-ship ballistic missile into the Red Sea. The missile landed in the water. 

March 2: The M/V Rubymar sank in the Red Sea, nearly two weeks after it was struck by a Houthi missile on February 18. The ship was carrying 21,000 tons of fertilizer when it sank, which posed an environmental risk. The sunken ship also presented a subsurface impact risk to other ships traveling through the Red Sea. 

March 4: Houthis fired an anti-ship ballistic missile into the Red Sea. The missile landed in the water. 

Also, Houthis fired two anti-ship ballistic missiles into the Gulf of Aden. The missiles targeted the M/V MSC SKY II, a container vessel owned by a Swiss company and flagged in Liberia. One missile struck the vessel, but it was able to continue on route. 

That evening, U.S. forces destroyed two anti-ship cruise missiles that were prepared to launch from Yemen toward the Red Sea. 

March 5: U.S. forces intercepted one anti-ship ballistic missile and three suicide drones above the Red Sea. The weapons targeted the USS Carney. 

Also, U.S. forces struck three anti-ship missiles and three unmanned surface vehicles (USVs) in Houthi-controlled Yemen. 

March 6: Houthis fired an anti-ship ballistic missile at the M/V True Confidence, a bulk carrier owned by a Liberian company and flagged in Barbados. The missile struck the carrier, killing three people and injuring four more. Nearby U.S. and coalition warships responded to the incident, the first fatal strike on a commercial vessel. 

Also, U.S. forces struck against two drones in Houthi-controlled Yemen. U.S. forces assessed that the weapons posed an imminent threat to commercial ships and U.S. vessels in the Red Sea.

March 7: U.S. forces struck four mobile Houthi anti-ship cruise missiles and one Houthi drone in Yemen. Also, U.S. forces downed three drones launched toward the Gulf of Aden.

March 8: U.S. forces struck two truck-mounted anti-ship missiles. Houthis launched two anti-ship ballistic missiles toward the M/V Propel Fortune, a Singapore-flagged, owned, and operated bulk carrier transiting the Gulf of Aden.

March 9: U.S., British and French forces downed at least 28 Houthi suicide drones launched toward the Red Sea and Gulf of Aden during a four-hour period late. The drones posed “presented an imminent threat to merchant vessels, U.S. Navy, and coalition ships in the region,” according to Central Command. The attack was reportedly the largest swarm of drones launched since October 2023.

March 11: Houthis fired two anti-ship ballistic missiles toward the M/V Pinocchio, a Liberian-flagged merchant vessel transiting the Red Sea.

Also, U.S. forces destroyed 18 anti-ship missiles and an unmanned underwater vessel in six strikes in Houthi-controlled Yemen. The weapons posed an imminent threat to U.S. Navy ships and commercial vessels, according to U.S. Central Command.    

March 12: Houthis fired one close-range ballistic missile at the USS Laboon. Also, U.S. forces and a coalition ship destroyed two unmanned aerial systems launched from Houthi-controlled territory. The weapons posed an imminent threat to U.S. Navy ships and commercial vessels.

March 13: Houthis fired one anti-ship ballistic missile into the Gulf of Aden. Also, U.S. forces destroyed four drones and one surface-to-air missile in Houthi-controlled territory. The weapons presented an imminent threat to U.S. Navy ships and commercial vessels.

March 14: Houthis fired two anti-ship ballistic missiles into the Gulf of Aden and two anti-ship ballistic missiles into the Red Sea. Also, U.S. forces destroyed nine anti-ship missiles and two drones in Houthi-controlled Yemen. The strikes were launched to “protect freedom of navigation,” according to U.S. Central Command.

March 15: Houthis fired three anti-ship ballistic missiles into the Red Sea.

March 16: Houthis launched two drones into the Red Sea. U.S. forces intercepted and destroyed one drone, and the other drone reportedly impacted in the water. Also, U.S. forces destroyed five unmanned surface vehicles (USV) and one drone in Houthi-controlled Yemen.

March 18: U.S. forces destroyed seven anti-ship missiles, three drones, and three weapons storage containers in Houthi-controlled areas of Yemen. The weapons posed an “imminent threat” to commercial vessels and U.S. Navy ships, according to U.S. Central Command.   

Also, Houthis reportedly launched a cruise missile that landed near the southern Israeli city of Eilat. The group had previously fired projectiles at Israel, but Israeli defenses had intercepted all of them.

March 20: A coalition aircraft destroyed one drone, and U.S. forces destroyed one unmanned surface vessel, both launched by Houthis.

March 21: A U.S.-led coalition aircraft destroyed one unmanned surface vessel launched from Houthi-controlled territory. Also, coalition forces destroyed two anti-ship ballistic missiles launched by the Houthis toward the Red Sea.

March 22: U.S. forces destroyed four drones in Houthi-controlled territory in self-defense. Houthis fired four anti-ship ballistic missiles toward the Red Sea. Also, U.S. forces struck three Houthi underground storage facilities used to threaten ships.

March 23: Houthis launched four anti-ship ballistic missiles toward the M/V Huan Pu, a Chinese-owned and operated tanker. A fifth missile caused minimal damage.

U.S. forces, including the USS Carney, engaged six Houthi drones over the southern Red Sea. Five crashed into the water, and one flew toward Houthi-controlled Yemen. The drones posed an imminent threat to U.S., coalition and commercial ships in the area, according to U.S. Central Command.  

March 27: U.S. forces downed four long-range drones launched by the Houthis at a U.S. warship in the Red Sea.

March 28: U.S. forces destroyed four long-range drones launched by the Houthis at a coalition vessel and a U.S. warship in the Red Sea.

March 30: U.S. forces destroyed one unmanned aerial system over the Red Sea and another that was prepared to launch from Houthi-controlled territory.

April 1: U.S. forces destroyed a Houthi unmanned surface vessel in self-defense.

April 3: The USS Gravely and other U.S. forces destroyed an inbound anti-ship ballistic missile and two unmanned aerial systems launched by the Houthis. They had targeted the USS Gravely, a destroyer. Also, U.S. forces destroyed a mobile surface-to-air missile system in Houthi-controlled territory.

April 4: U.S. forces destroyed one anti-ship missile in Houthi-controlled territory that posed a threat to coalition forces and merchant vessels.

April 6: U.S. forces destroyed one mobile surface-to-air missile system in Houthi-controlled territory. Also, U.S. forces downed a drone over the Red Sea and destroyed one inbound anti-ship missile.

April 8: U.S. forces destroyed an air defense system with two missiles ready to launch, a ground control station in Houthi-controlled territory, and one unmanned aerial system launched over the Red Sea. Separately, the Houthis launched an anti-ship ballistic missile toward the M/V Hope Island, a British-owned cargo ship escorted by a coalition warship in the Gulf of Aden.

April 9: The USS Mason and other U.S. forces destroyed one inbound anti-ship ballistic missile launched over the Gulf of Aden. The Houthis appeared to be targeting the MV Yorktown, a U.S.-flagged and U.S.-owned vessel.

April 10: U.S. forces downed two drones launched over the Gulf of Aden and a third drone launched over the Red Sea by the Houthis. Separately, U.S. forces destroyed eight drones in Houthi-controlled territory in self-defense.  

April 11: U.S. forces destroyed one anti-ship ballistic missile launched over the Red Sea from Houthi-controlled territory.

April 13: Houthis launched one anti-ship ballistic missile toward the Gulf of Aden.

April 14: U.S. forces destroyed four drones in Houthi-controlled territory that posed a threat to vessels in the region.

April 16: U.S. forces successfully engaged two drones in Houthi-controlled territory that posed an imminent threat to U.S., coalition, and merchant vessels in the region.

Some of the information in this article was originally published on February 1, 2024.