What are the reasons which forced America to join World War I ?

Reasons for America’s joining World War I :

• America joined the World War I be­cause of cultural and social affinity of Americans with Britishers. U.S.A. joined World War In favour of Britain, France and others.

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• U.S.A. supplied arms and other essen­tials to Allies viz. Britain, France which prompted it to join them in World War I.
• Economic consideration also prompted the Americans to enter the War in favour of Entente Countries.
• The sinking of the American ship, carrying American citizens by the German submarine (U-Boats) forced America to join the World War I against Central Powers.