What steps did america take in preparing to enter the war?

Here are some of the steps the America take in preparing to enter the war:Increasing of the size of the U.S. Navy.Pushing the congress to approve a military draft requiring the registration of men ages of 21-35.Agreed to come to the aid of the attacked countries.Ordering the attack on the German submarines that been prying off the east coast. Attacking on Pearl Harbor.Authorized FDR to trade military hardware for the security of the US.