A US Army commander has been suspended after he reportedly sent a memo to Army recruiters that included the Nazi motto of the notorious Auschwitz death camp.

Around 1.3 million people died at Auschwitz, a Nazi concentration camp that operated between 1940 and 1945. Prisoners at the camp had to walk under an iron gate with a sign that read “Arbeit macht frei,” which in German means, “Work sets you free.” An Army commander in Houston used the slogan – including the original German – on a memo encouraging recruiters to secure more enlistment contracts, according to Newsweek.