Operation Prosperity Guardian

The operation aims to ensure both the freedom of navigation and the safety of maritime traffic in the Red Sea, Bab al-Mandeb and Gulf of Aden.^[38] Following the start of the Gaza war, multiple civilian container and freight ships were attacked and hijacked in the Gulf of Aden by Houthi forces.^[39] Houthi forces stated that only vessels with links to Israel are targeted, though vessels without links to Israel have been targeted, possibly due to misidentification from many vessels turning off their automatic identification system signal during transit.^[40][41] The Houthis claim the attacks will end if Israel allows humanitarian supplies to enter Gaza; the attempted blockade is seen as a way to pressure Israel's Western allies to work to restrain Israeli operations in the war.^[42] As of 1 January 2024^[update], at least seventeen civilian vessels have been attacked.

The waterways to and from the Red Sea are shipping chokepoints for the global economy which connects the Mediterranean Sea with the Indian Ocean and the Suez Canal with the Horn of Africa.^[43] This had led to the 2023 situation being dubbed "a new Suez Crisis" by The Economist.^[44]

A considerable number of freighters have continued to transit, with mostly large container ships diverting away rather than other shipping, with the strait continuing to be heavily used by bulk carriers and tankers which are under different contract arrangements and often from countries supportive of Gaza's situation so perceiving a minimal risk from ongoing Houthi attacks.^[45] In the first week of January 2024 the average number of freighters active each day in the Red Sea included 105 bulk carriers and 58 tankers, down from 115 bulk carriers and 70 tankers the week before.^[41] In contrast, six of the ten largest container shipping companies were largely avoiding the Red Sea,^[46] with relatively few container ships transiting the Bab al-Mandeb strait from 18 December 2023.^[47]

Combined Task Force 153, under control of the U.S. Combined Maritime Forces,^[38] will control the vessels of the operation, which currently include the United States Navy's Carrier Strike Group 2.^[48] This strike group consists of the aircraft carrier USS Dwight D. Eisenhower and her escorting Arleigh Burke-class destroyers, USS Gravely, USS Laboon and USS Mason.^[49][50] Other countries' vessels involved include the British destroyer HMS Diamond and frigate HMS Richmond, with Greece also announcing plans to send one frigate to the region.^[7][51][52] Denmark would initially announce they would be sending one officer to aid the operation but made an additional announcement on 29 December 2023 that a frigate would also be sent.^[13][53][54]

Australia announced that it will send 11 military personnel but rejected a US request to send a warship.^[55][56] The Canadian Armed Forces will deploy an unspecified number of land, air and sea support vehicles.^[57] Canada is sending three staff officers by way of Operation Artemis.^[58] The Netherlands plans to send two staff officers. Norway plans on dispatching up to ten staff officers, but as of 21 December is not sending any vessels.^[59] Singapore will be deploying a team from the Republic of Singapore Navy (RSN)'s Information Fusion Centre to support information sharing and engagement outreach to the commercial shipping community, as well as a senior national representative to the Combined Maritime Forces (CMF).^[60][61]

Seychelles is not deploying any vessels or personnel, and limits its participation to "providing and receiving information" as a member of Combined Maritime Forces (CMF) (which is based in Bahrain).^[62] On 23 January 2024, New Zealand sent six New Zealand Defence Force personnel to help provide maritime security in the Red Sea including "precision targeting".^[63]

On 24 February 2024, Sri Lanka Navy confirmed that one of its ships had completed its maiden patrol in the Bab el-Mandeb Strait and was returning to the island but did not clarify the dates, name of the ship or plans for further patrols.^[64] It was later revealed to be SLNS Gajabahu and the Sri Lankan government confirmed that patrols would continue.^[65][66]

Finland announced on 8 March 2024 that the country would send up to two soldiers to support Operation Prosperity Guardian, in addition to supporting the European Union-led Operation Aspides.^[67]

On 1 February 2025, Destroyer Squadron 50 of U.S. Naval Forces Central Command assumed responsibility for leading Operation Prosperity Guardian from Combined Task Force 153.^[68]

The Houthis stated: "We have capabilities to sink your fleet, your submarines, your warships", adding "the Red Sea will be your graveyard".^[164] In a public statement, Commander-in-Chief of the Islamic Revolutionary Guard Corps (IRGC) Hossein Salami reassured the Iranian public that there is nothing to fear from the coalition.^[165][166] (The Iranian government has long had purported direct ties to the Houthi movement.) IRGC senior officer Mohammad Reza Naqdi was cited as threatening to close "the Mediterranean Sea, (the Strait of) Gibraltar and other waterways" without explaining how.^[167]

While named by the United States as part of the coalition, the French Defense Ministry stated that its warships, including the frigate Languedoc, would remain under French command.^[13] Italian Defense Ministry, which has deployed the frigate Virginio Fasan in the Red Sea, also stated that the warship was not part of Prosperity Guardian.^[13] Spanish Defense Ministry stated that it would only take part in operations under NATO or EU coordination.^[13] Spain also vetoed any potential EU contribution to Operation Prosperity Guardian through the resources of EU-conducted Operation Atalanta.^[168] At the time, Spain was the commanding nation of Operation Atalanta and had the frigate Victoria deployed in the area.^[169]

The Maersk Line announced on 24 December 2023 that with Operation Prosperity Guardian now in place, it would resume using the Suez Canal.^[170] On 2 January 2024, both Maersk and Happag-Lloyd announced that the route would once again be avoided until further notice.^[171][172]

On 3 January 2024, President of Sri Lanka Ranil Wickremesinghe indicated that Sri Lanka will be deploying a warship to the Red Sea and the Sri Lanka Navy stated that it is ready to deploy one of its five Advanced Offshore Patrol Vessels as part of Operation Prosperity Guardian.^[173]

On 13 January 2024, pro-Palestinian protesters in central London expressed support for the Houthi movement, chanting slogans hours after the RAF and US launched a missile and airstrike on ground targets in Yemen. Some demonstrators shouted, "Yemen, Yemen make us proud, turn another ship around," and displayed signs reading "Hands off Yemen", "Thanks Yemen" and "UK+US wants war. Yemen supports Palestine. Gaza Wants to live".^[174]

Houthi attacks on merchant ships in the Red Sea escalated, in response to "American-British aggression against our country", as stated by a Houthi spokesman in January 2024. US Central Command then stated that the Houthi attacks "have nothing to do with the conflict in Gaza" and that Houthis had "fired indiscriminately into the Red Sea", to target vessels, affecting more than 40 nations.^[175]

In March 2024, ahead of the 9th anniversary of the Saudi-led intervention in the Yemeni civil war, Mohammed al-Houthi warned Saudi Arabia that it will resume attacking the country should it allow the US-led coalition to use its territory or airspace "in their aggression on Yemen". al-Houthi also called the US-UK strikes inside Yemen as "arrogant" and "unjustified actions", saying the Houthi rebels will not remain silent and will respond in kind.^[176][177]

• Yemeni civil war (2014–present)
• Operation Aspides
• Operation Earnest Will
• Operation Ocean Shield
• Operation Praying Mantis
• Operation Sankalp
• International Maritime Security Construct
• List of wars involving the United Kingdom
• List of wars involving the United States
• United States conflict with Iran-backed militias (2023–present)
• Denmark's role in Operation Prosperity Guardian