Barack Obama is getting called out again for his knowledge of history, including his own family’s, after declaring to veterans on Memorial Day that his uncle helped liberate the Auschwitz death camp at the end of World War II. Two problems with the tale: Auschwitz was liberated by the Soviet Army, and Obama’s American mother was an only child. Speaking in Las Cruces, N.M., on Monday, the Democratic presidential candidate said he did not serve, but comes from a family that did sacrifice for the nation. He was speaking about the many members of the military who suffer post traumatic stress disorder and should be given better care. “I had a uncle who was one of the, who was part of the first American troops to go into Auschwitz and liberate the concentration camps and the story in our family is that when he came home, he just went up into the attic and he didn’t leave the house for six months, right. Now obviously something had really affected him deeply but at that time there just weren’t the kinds of facilities to help somebody work through that kind of pain,” he said. However, a quick check on the U.S. Holocaust Memorial Museum Web site shows that Soviet forces were the first to approach Auschwitz, which was in Poland. “On Jan. 27, 1945, the Soviet army entered Auschwitz and liberated more than 7,000 remaining prisoners,” the site reads. U.S. forces did liberate several camps, including Ohrdruf Concentration Camp on April 4, 1945; Mittelbau-Dora Concentration Camp on April 11, 1945; Buchenwald on April 12, 1945; Dachau on April 29, 1945; and Mauthausen on May 5, 1945. Obama was raised in part by his grandparents, and his father served in the second World War. A request for clarification has been made to the Obama campaign.