The Battle of El Adde took place on 15 January 2016. Al-Shabaab militants launched an attack on a Kenyan-run AMISOM army base in the town of El Adde, Gedo, Somalia. It remains the deadliest attack on the AMISOM Peace Support Mission to Somalia and is the Kenya Defence Forces (KDF) largest defeat since independence in 1963. As such, the Kenyan government went to extreme lengths to conceal the extent of its losses. It has been described by the media as a "military massacre" or military disaster. It was also the largest military defeat in Kenyan history.

The Kenya Defence Forces (KDF) are the armed forces of the Republic of Kenya. They are made up of the Kenya Army, Kenya Navy, and Kenya Air Force. The current KDF was established, and its composition stipulated, in Article 241 of the 2010 Constitution of Kenya; it is governed by the KDF Act of 2012. Its main mission is the defence and protection of the sovereignty and territorial integrity of Kenya, recruitment to the KDF is done on yearly basis. The President of Kenya is the commander-in-chief of the KDF, and the Chief of Defence Forces is the highest-ranking military officer, and the principal military adviser to the President of Kenya.

The KDF is regularly deployed in peacekeeping missions in Africa and further afield for example peace keeping missions in Somalia since 2011.