Lox, the final toll of the Nazi death camps and other methods of mass murder will never be known, but the 6 million (in round numbers) refers to the number of Jews killed. The total, including Rom, homosexuals, Russian and Polish POWs, the disabled and others, is nearer to 11 million. If one includes the number of Soviet civilians who died, that number can easily double. Nobody in the West is likely to tell a Russian that the war was about freeing the Jews, then or now. Not at the time, because the extent of the disaster wasn't known, and not now because nobody really cares about events of 3/4 of a century ago, except for a rapidly-decreasing number of people who were closer to the events and historical pedants.