Harold Gregory Moore Jr. (February 13, 1922 – February 10, 2017) was a United States Army lieutenant general and author. He was awarded the Distinguished Service Cross, the U.S. Army's second-highest decoration for valor, and was the first soldier in his West Point graduating class (1945) to be promoted to brigadier general, major general, and lieutenant general. Moore is remembered as the lieutenant colonel in command of the 1st Battalion, 7th Cavalry Regiment, at the Battle of Ia Drang in 1965, during the Vietnam War.
https://en.wikipedia.org/wiki/Hal_Moore