Why did US send military forces into Granada in 1982?

The U.S. sent military forces into Grenada in 1983, not 1982, primarily to restore order following a coup that resulted in political instability and the establishment of a Marxist government. The invasion, known as Operation Urgent Fury, was also motivated by concerns for the safety of American medical students on the island and to counter perceived Soviet influence in the Caribbean. The U.S. aimed to protect its interests and promote democracy in the region.