Gulf of Aden Security Review

A regularly updated review of both Yemen and the Horn of Africa covering topics related to security, governance, and militant activity.

Yemen: Houthis continue military buildup in western Yemen; flights from Sana’a to resume on April 24

Somalia: Al Shabaab raids Ethiopian ATMIS base in southern Somalia; ATPU foils an al Shabaab attack in Mombasa; security forces continued operations in central Somalia

Yemen Security Brief:

The Houthis reportedly continued their military buildup in western Yemen. Yemeni sources reported the Houthis are constructing fortifications near Taiz city, Taiz governorate, western Yemen, on April 21.[i]

Yemenia Airways announced that Sana’a airport will reopen to flights on April 22.[ii] Yemenia will operate a weekly Sana’a-Amman, Jordan flight beginning on April 24. Opening Sana’a’s airport is one of the UN-backed truce conditions.

Somalia Security Brief:

Al Shabaab raided an Ethiopian ATMIS base in Dinsor, Bay region, southern Somalia, on April 21.[iii] Al Shabaab claimed they wounded four soldiers.

Kenyan Anti-Terror Police Unit (ATPU) foiled an al Shabaab terror attack on April 17 in Mombasa, Coastal County, southern Kenya, on April 13.[iv]  The ATPU arrested three suspected al Shabaab militants that are reportedly part of a larger seven-person cell coordinating attacks in the area.[v]

Galmudug State and National Intelligence and Security Agency (NISA) forces continued securing villages in southern Hobyo district and Harardhere district, southern Mudug region, central Somalia, on April 22.[vi] Officials said security forces are still operating in the same villages they had been in earlier in the week. US-trained Danab forces had also been involved in the operations as of April 19.[vii]

[i] Akhbar Yemen, “The Houthi militia is preparing to fight a decisive battle in the second governorate after Marib... after opening the port of Hodeidah and Sanaa airport,” April 21, 2022,

[ii] Al Arabiya, “The first flight from Sana’a airport on Sunday.. activists warn of black tickets,” April 21, 2022,

[iii] Radio al Furqaan, “TFG forces clash with al Shabaab in southern Somalia,” April 21, 2022,

[iv] SONNA, “Three arrested as anti-terror police foil Easter attack in coast,” April 20, 2022,

[v] Keydmedia, “Kenya foils a terror attack after the Easter holiday,” April 20, 2022,

[vi] Horseed Media, “Galmudug: 12 villages in southern Mudug liberated from Al-Shabaab,” April 22, 2022,

[vii] Christopher Muth and Max Ryabinin, “Gulf of Aden Security Review – April 20, 2022,” Critical Threats Project at the American Enterprise Institute, April 20, 2022,

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