In 1941 Stalin refused to believe that Hitler would break the non-aggresion pact he signed just two years previously. And so despite over 90 warnings it would not be until the guns were heard attacking Soviet forces that he would fully respond. But respond he did. Battles Won & Lost looks at why Barbarossa was launched in the first place, and how despite early German success, it was ultimately doomed to fail. Along with Operation Barbarossa, this episode examines more of the great battles of WW2. See the bottom of the description for more detail.