Adelbert F. Waldron, or Adelbert F. Waldron III, was an AmericanUS Armysniper serving during the Vietnam War who is little known, but who currently holds the highest number of kills for any American soldier in US history. The legendary Carlos Hathcock had 94 confirmed kills, Chuck Mawhinney had 103, both were members of the US Marine Corps. However, despite both of them being fairly well known, Waldron is all but unheard of. Waldron also was one of the few two time recipients of the Distinguished Service Cross, both awarded for separate actions in 1969. The Army is the branch of the United States armed forces which has primary responsibility for land-based military operations. ... Arkansas Army National Guard soldiers practice sniper marksmanship at their firing range near Baghdad, Iraq on February 15, 2005. ... Combatants Republic of Vietnam United States Republic of Korea Thailand Australia New Zealand The Philippines National Front for the Liberation of South Vietnam Democratic Republic of Vietnam Peopleâs Republic of China Democratic Peoples Republic of Korea Strength US 1,000,000 South Korea 300,000 Australia 48,000... Carlos Norman Hathcock II (May 20, 1942 â February 23, 1999) was a legendary United States Marine Corps sniper with a service record of 93 confirmed kills and more than 300 probable kills during the Vietnam War. ... Chuck Mawhinney is an Oregon born American man who served in the US Marine Corp as a Sniper during the Vietnam War. ... United States Marine Corps Emblem The United States Marine Corps (USMC) is the second smallest of the five branches of the United States armed forces, with 170,000 active and 40,000 reserve Marines as of 2002. ... The Distinguished Service Cross (DSC) is the second highest military decoration of the United States Army, awarded for extreme gallantry and risk of life in actual combat with an armed enemy force. ... For the Stargate SG-1 episode, see 1969 (Stargate SG-1). ...