During World War II, the U.S. Army's views on the Holocaust changed. The scale of the Holocaust was not widely known at first, and the military components of the conflict received much of the attention. The U.S. military and administration adopted a more forceful posture against the horrors carried out by Nazi Germany as the Allied forces grew in strength and additional proof of the Holocaust surfaced. In the end, the U.S. Army contributed to the liberation of concentration camps and the assistance given to survivors. The Holocaust had a big impact on how post-war policies and war crimes tribunals were developed.