Answer: Because fascism was gaining ground in Europe.
Step-by-step explanation:
The Neutrality Acts were enacted to limit the United States participation in foreign conflicts. However, the cash-and-carry provision stated that nations involved in war could, always under Presidential approval, purchase goods from the United States, except for firearms. After Germany’s occupation of Czechoslovakia, trade was opened to guns, and by 1941 the Neutrality Acts were irrelevant as the United States entered the war.