Final answer:
Allies in World War II faced the challenges of long-distance troop and supply logistics, resource allocation between theaters, and defeating multiple enemies during the two-front war.
Step-by-step explanation:
The Allies faced several challenges in fighting a two-front war during World War II. Troops and supplies had to be transported over long distances to the various fronts, stretching logistical capabilities. Additionally, military planners were tasked with the difficult decision of how to divide resources between the European and Pacific theaters of operations. Concurrently, they had to strategize on multiple enemies that needed to be defeated, each presenting unique strategic and tactical issues.
These challenges were further compounded by the fact that Europe had turned into a landscape of total war, where civilian areas could become battlefields at any moment. In North Africa and other combat regions, although the armies were more mobile, they faced unique hardships, such as fighting at high altitudes and enduring harsh weather conditions. The Soviet Union, America, Britain, France, and other Allies needed well-coordinated strategies and flexibility in their military operations to handle these various and simultaneous challenges.