Answer:
The tactic, Germany First was where the allies concentrated on Germany, as they theorized that Germany would be a long-lasting affect compared to Italy or the Japanese Empire. One of their strategies was to outlast Germany, constantly pouring resources into the war effort, while blockading Germany. America's power of mechanical manufacturing was also a major point in the war in Europe. They really just pushed through the German lines with sheer numbers.
Step-by-step explanation: