In or amongst the German armed forces, large armies such as the Waffen-SS received training with the best gear and weapons, primarily used to hit weak points. The Waffen-SS also served as a heavy unit. Used to smash well-armed and -equipped armies on the Eastern Front, the Waffen-SS lost its efficacy after Kursk (1943), but nevertheless later fought in many theaters and played a role in the Battle of the Bulge (1944–1945).