Why the entry of the US into the war Germany decided its only hope for victory was to?

Germany believed its only hope for victory after the U.S. entered World War I was to launch a series of aggressive offensives on the Western Front. The influx of American troops and resources posed a significant threat to the Central Powers, compelling Germany to attempt to secure a decisive victory before the full impact of U.S. involvement could be felt. This led to the Spring Offensive of 1918, aiming to break through Allied lines and force an armistice. However, these efforts ultimately failed, contributing to Germany's defeat.