'The Marine Corps on Thursday once again did damage control after a photograph surfaced of a sniper team in Afghanistan posing in front of a flag with a logo resembling that of the notorious Nazi SS — a special unit that murdered millions of Jews, gypsies and others.

The Corps said in a statement that using the symbol was not acceptable, but the Marines in the photograph taken in September 2010 will not be disciplined because investigators determined it was a naïve mistake.

The Marines believed the SS symbol was meant to represent sniper scouts and never intended to be associated with a racist organization, said Maj. Gabrielle Chapin, a spokeswoman at Camp Pendleton, where the Marines were based.'

Read more: US Marines Posed with Nazi Symbol in Afghanistan