Vietnam as a whole wasn't part of Cambodia with exception of Saigon, Chu Doc, Hatien, Phu Quoc, etc in the southern region while the Central region was governed by Champa and the North was once goverened by Dai Viet.
Thereof, how do I get from Vietnam to Cambodia?
Bus Vietnam to Cambodia You can take a direct bus from Ho Chi Minh City to Phnom Penh, which takes about 6.5 hours. If you're going to do this route, we recommend Giant Ibis bus company, which offers a superior service to most bus companies in Cambodia.
Furthermore, how long is the flight from Vietnam to Cambodia?
Why did Vietnam leave Cambodia?
During the Vietnam War, Vietnamese and Cambodian communists had formed an alliance to fight U.S.-backed regimes in their respective countries. In January 1978 the Vietnamese military withdrew because their political objectives had not been achieved; the Khmer Rouge remained unwilling to negotiate seriously.
Is Cambodia or Vietnam better?
I love both countries, but Vietnam is more vibrant and has much better food. Cambodia is a wonderful side trip if you can have three days in Siem Reap / Angkor Wat. The locals are hospitable and relaxed. Vietnam is a country in which you need to do your homework.