Answer:
It is hard to imagine World War II without the United States as a major participant. Before the Japanese attack on Pearl Harbor in 1941, however, Americans were seriously divided over what the role of the United States in the war should be, or if it should even have a role at all. Even as the war consumed large portions of Europe and Asia in the late 1930s and early 1940s, there was no clear consensus on how the United States should respond.
Explanation:
Quite simple they were outnumbered by the Mexicans 1800 to 185 and they were outgunned.
The German plan was the plan used to respond to the mobilization of its eastern neighbor