Of interest....
https://en.wikipedia.org/wiki/William_Calley
On August 19, 2009, while speaking to the Kiwanis Club of Greater Columbus, Calley issued an apology for his role in the My Lai massacre. Calley said:
“There is not a day that goes by that I do not feel remorse for what happened that day in My Lai,” Calley told members of the Kiwanis Club of Greater Columbus on Wednesday. His voice started to break when he added, “I feel remorse for the Vietnamese who were killed, for their families, for the American soldiers involved and their families. I am very sorry.”[43]
As I understand it, were it not for President Johnson and his Project 100,000 initiative, he would never have been accepted for the Army.