Don Muang 631st Command Support Group - Navy COTTON 9 mi) northeast of the

9 mi) northeast of the confluence of the Yen

The valley runs north and south for 40 kilometers and is a 1

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and a United States Army military base from 1970 to 1971 during the Vietnam War

and 411 km (255 mi) from Hanoi in Vietnam

Don Muang 631st Command Support Group - Navy COTTON 9 mi) northeast of theDon Muang Royal Thai Air Force Base is approximately 40 kilometers north of central Bangkok and is the main operating and command base for the Royal Thai Air Force (RTAF). In addition, units of the Royal Thai Army and Royal Thai Police have personnel located there. The first flights to Don Muang were made on 8 March 1914 and involved the transfer of aircraft of the RTAF. Three years earlier, Thailand had sent three army officers to France to train as