April 24 - Fighting breaks out in the Dominican Republic as officers loyal to deposed President Juan Bosch lead a mutiny against the right wing junta running the country. US troops are later sent by President Lyndon B. Johnson for the stated purpose of protecting US citizens and preventing an alleged Communist takeover of the country.
April 28 - Vietnam War: AustralianPrime MinisterRobert Menzies announces that the country will substantially increase its number of troops in South Vietnam, supposedly at the request of the Saigon government, although it is later revealed that Menzies had asked the leadership in Saigon to send the request at the behest of the Americans.
June 10 - Vietnam War: Battle of Dong Xoai begins - About 1,500 Vietcong mount a mortar attack on Dong Xoai and then overrun its military headquarters and adjoining militia compound.
July 24 - Vietnam War: Four F-4C Phantoms escorting a bombing raid at Kang Chi are the targets of antiaircraft missiles in the first such attack against American planes in the war. One is shot down and the other three sustain damage.
August 18 - Vietnam War: Operation Starlite begins as 5,500 United States Marines destroy a Viet Cong stronghold on the Van Tuong peninsula in Quang Ngai Province, in the first major American ground battle of the war. The Marines were tipped-off by a Viet Cong deserter who said that there was an attack planned against the US base at Chu Lai.
October 15 - Vietnam War: The anti-war student-run National Coordinating Committee to End the War in Vietnam stages the first public burning of a draft card in the United States.
October 30 - Vietnam War: Just miles from Da Nang, United States Marines repel an intense attack by wave after wave of Viet Cong forces, killing 56 guerrillas. Among the dead, a sketch of Marine positions was found on the body of a 13-year-old Vietnamese boy who sold drinks to the Marines the day before.
November 6 - Freedom Flights begin: Cuba and the United States formally agree to start an airlift for Cubans who want to go to the United States (by 1971 250,000 Cubans take advantage of this program).
November 26 - At the Hammaguira launch facility in the Sahara Desert, France launches a Diamant-A rocket with its first satellite, Asterix-1 on board, becoming the third country to enter space.
