The invasion of Anjouan (code-named Operation Democracy in Comoros), on March 25, 2008, was an amphibious assault led by the Comoros, backed by African Union (AU) forces, including troops from Sudan, Tanzania, Senegal, along with logistical support from Libya and France. The objective of the invasion was to topple Colonel Mohamed Bacar's leadership in Anjouan, an island part of the Union of Comoros, when he refused to step down after a disputed 2007 election, in defiance of the federal government and the AU.