Since the Vietnam War, the United States has engaged in several military interventions. As the West looks ready to act against Syria, accused of using chemical weapons against its own citizens, here are 10 instances when America has intervened, sometimes without authorization from the United Nations. Produced by Anup Kaphle.
Grenada: Unilateral U.S. military action In October 1983, the United States led a military invasion of Grenada, a tiny Caribbean island nation, after a bloody coup ousted the government of Prime Minister Maurice Bishop, who was assassinated. President Ronald Reagan was said to have been concerned about a 10,000-foot-long airstrip that the communist country's military was building, which he thought would enable planes loaded with arms from Cuba to reach insurgents in Central America. The administration was also concerned about the safety of 800 American medical students studying in Grenada. AP Buy Photo