America fights Italy while Germany holds back

This scenario leaves the United States fighting Italy and Japan while remaining formally outside the German war. American troops could operate against Italians in North Africa, and American aircraft could concentrate on Italy while British bombers attacked Germany. That division would not separate the opposing armies on the ground: German and Italian forces operated together. Bombing or fighting Italian positions could consequently bring Americans into direct contact with Germans. The forecast is that a North African collision would end the attempted separation of belligerencies.