British troops have been training their Ugandan counterparts to help them prepare for a difficult peacekeeping deployment where they will fight the Islamist militants, al-Shabab. Uganda is the biggest contributor to the African Union Mission in Somalia (Amisom) - with 5,000 personnel forming part of the 20,000-strong force. Created in 2007, Amisom has been at the forefront of efforts to tackle the extremists who want to topple the western-backed government. During their deployment, marines from the Ugandan People's Defence Force (UPDF), will protect the area and sea around Mogadishu airport in the Somali capital. For more than a month, eight Royal Marines under the 1 Assault Group have been working on the water and beaches of Lake Victoria in Entebbe, Uganda, sharing their vital skills. This has included lessons in how to use boats tactically in the littoral environment - the shore area - conduct patrols, operate vehicle checkpoints as well as stopping and searching suspect craft.