What effect did united states entry into the war have

Well, when the US joined the war, not effectively sending troops but helping allies countries such as the Uk, the wheat and weapons produced in the US were being sold in several countries, and that helped with the lack of customers that The Great Depression brought to the US, so therefore the war was beneficial to the economical state of the United States of America

well the fact it is basically a peninsula allowed trade to come from many places, thus allowing cultural diffusion to take place. india has seasonal monsoons that merchants travel back and forth from india using the monsoons wind patterns