 Complete the following phrase:  Since the GAF was formed in 1985, it has been active in UN and African Union peacekeeping missions. It has been classed as a Tier 2 peacekeeping contributor and was described by the Center on International Cooperation as a regional leader in peacekeeping. It dispatched soldiers to Liberia as part of ECOMOG from 1990 to 1991, during which two Gambian soldiers were killed. It has since contributed troops to ECOMIL, UNMIL, and UNAMID. Responsibility for the military has rested directly with the President since Jammeh seized power at the head of a 