What units?
Normally providing a source is normal but for something so normal and routine as basic knowledge of WWII you should just
google it.
Try “WWII Americans in Vietnam”.
Thanks, and you might be interested in this or know about it:
An incredible article and great read!
The OSS in Vietnam, 1945: A War of Missed Opportunities by Dixee Bartholomew-Feis
In 1945, members of the American “Deer Team,” part of the OSS, worked with Vietnamese guerrilla fighters to throw Japanese troops out of Indochina.
As the war ended, the people of Vietnam looked to the United States to support their dreams of independence.
July 15, 2020
https://www.nationalww2museum.org/war/articles/oss-vietnam-1945-dixee-bartholomew-feis
https://www.nationalww2museum.org/sites/default/files/2020-07/P13%20-%20Edward%20Lengel.jpg
Members of the Deer Team and Viet Minh at training camp. Allison Thomas stands in the center and is flanked on his left by Vo Nguyen Giap and on his right by Ho Chi Minh. Photo by the National Archives and Records Administration.
The OSS then sent in “Deer Team,” commanded by Maj. Allison Thomas, who parachuted into the Viet Minh base area to train them for operations against the Japanese. When Thomas and his team arrived in late July, they were greeted by a large banner proclaiming, “Welcome to Our American Friends.” With the tone for their work set, the Deer Team went about training the Viet Minh in the proper use of bazookas, carbines, and grenades. Before long, the Vietnamese-American Force was born.