North Vietnamese

South Vietnam

From 1960, the North Vietnamese government went to war with the Republic of Vietnam via its proxy the Viet Cong, in an attempt to annex South Vietnam and reunify Vietnam under a communist party. North Vietnamese and Viet Cong forces and supplies were sent along the Ho Chi Minh trail. In 1964 the United States sent combat troops to South Vietnam to support the South Vietnamese government, but the U.S. had advisors there since 1950. Other nations, including Australia, the Republic of Korea, Thailand and New Zealand also contributed troops and military aid to South Vietnam's war effort. China, DPRK and the Soviet Union provided aid to and troops in support of North Vietnamese military activities. This was known as the Vietnam War, or the American War in Vietnam itself (1955–75). In addition to the Viet Cong in South Vietnam, other communist insurgencies also operated within neighboring Kingdom of Laos and Khmer Republic, both formerly part of the French colonial territory of Indochina. These were the Pathet Lao and the Khmer Rouge, respectively. These insurgencies were aided by the North Vietnamese government, which sent troops to fight alongside them.