August 2011: African Union troops push Al Shabab out of Mogadishu in a coordinated offensive with Somali government troops.
Oct. 16, 2011: Kenyan troops enter Somalia, after a spate of Somali attacks against Western tourists and aid workers on Kenyan soil.
Dec. 31, 2011: Ethiopian troops enter Somalia, and take the town of Beledweyne from Al Shabab.