How many American soldiers lives were lost in the Vietnam war?

Eleven general officers were killed during the Vietnam War:General Officer Grades are:Brigadier General (BG) (O7)

Major General (MG) (O8)

Lieutenant General (LTG) (O9)

General (GEN) (O10)

General of the Army (GA) (O11) (Obsolete, WW2 rank)

General of the Armies (Honorary Title given only to George Washington, Posthumously)