Invitation by the Republic of South Vietnam.
America did get involved
The bombing of Pearl Harbor.
April 1917
World War2
America.
Great Britain, America, France, Spain, and some Dutch involvement was present.
The US is involved in Latin America militarily because of the Monroe doctrine.
A strong reluctance to become involved in future wars.
If they are in alliance with one of them and is asked for help, or if the situation threatens global/regional safety.
Because the US was affraid that Latin American countries would become communist.
The Townshend acts were one of the main things that led the US Revolutionary War. The acts involved the parliament of Britain and the colonists in what would become America.
The Second Great Awakening