The United States occupation of Nicaragua from 1912 to 1933 was part of the Banana Wars, when the U.S. military invaded various Latin American countries from 1898 to 1934. The formal occupation began in 1912, even though there were various other assaults by the U.S. in Nicaragua throughout this period. American military interventions in Nicaragua were designed to stop any other nation except the United States of America from building a Nicaraguan Canal.

The Banana Wars were a series of conflicts that consisted of military occupation, police action, and intervention by the United States in Central America and the Caribbean between the end of the Spanish–American War in 1898 and the inception of the Good Neighbor Policy in 1934. The military interventions were primarily carried out by the United States Marine Corps, which also developed a manual, the Small Wars Manual (1921) based on their experiences. On occasion, the United States Navy provided gunfire support and the United States Army also deployed troops.