What factors increased Americasn sympathy for the allies?

Several factors increased American sympathy for the Allies during World War I. The cultural and historical ties between the U.S. and Britain, including shared language and democratic values, played a significant role. Additionally, the German unrestricted submarine warfare, which threatened American lives and commerce, heightened public outrage. Propaganda efforts by the Allies, portraying Germany as a militaristic aggressor, further swayed American opinion in favor of the Allies.