One of the most infamous moments in American military history, Al Jazeera reports.
As the 50th anniversary of the My Lai massacre approaches, survivors of the 1968 massacre spoke to the dpa news agency about the deaths of up to 504 civilians at the hands of US soldiers during the war in Vietnam.
Although 26 US soldiers were charged with war crimes, only the platoon leader Lieutenant William Calley was convicted of murder. Calley made his first public apology in 2009:
"There is not a day that goes by that I do not feel remorse for what happened that day in My Lai ... I feel remorse for the Vietnamese who were killed, for their families, for the American soldiers involved and their families.
I am very sorry ... If you are asking why I did not stand up to them when I was given the orders, I will have to say that I was a second lieutenant getting orders from my commander and I followed them - foolishly, I guess."