TAD1745615: The Organization of American States (OAS) arranged a cease-fire and established an inter-American military force for peacekeeping duties Its forces began arriving in mid-May, and american Marines were withdrawn from the country : here First inter-american patrol, american Military Police Captain Donald M. Gallagher of New York briefs Honduran and United States military police on the routes they will patrol as members of the OEA Military Police Unit (The OEA Organizacion de Los Estados Americanos the OAS' Spanish name) are on helmets and arm bands of the newly-formed force. The Inter-American Force includes military and police units from Costa Rica Nicaragua Honduras Brazil and the United States. It is under the command of Brazilian General Hugo Panesco Alvim revolution, photo NARA / Bridgeman Images