Question

2. What angered other nations about Italy's conquests after WWI?
3. What resulted from Operation Barbarossa?
4. Which major events lead the U.S. to become involved in WWII?

Answer 1

3. The failure of Operation Barbarossa reversed the fortunes of the Third Reich. Operationally, German forces achieved significant victories and occupied some of the most important economic areas of the Soviet Union (mainly in Ukraine) and inflicted, as well as sustained, heavy casualties.