C. Avoid the problem of fighting Allied powers on two fronts; In more detail, the Schlieffen plan was the Imperial German plan to force a French surrender early in the case of a two front war with France and Russia. The plan stated that German troops should attack the French lowlands by marching through Belgium and advancing along the coast until the German units completed a pincer movement to the west of Paris, cutting off the main French force from their Capital. This was planned to be done in a few weeks, that way Germany could start an offensive against Russia before they could mobilize their army.
Most isolationists felt that there was no need for americans to feel threatened by developments in Europe and Asia because the vast pacific and atlantic oceans insulated the country from troubles in those regions, and the United States had formed friendly alliances with all the other nations in the Western hemisphere.