Before the U. S. entered the war, what strategy did the Germans put in place to hinder U. S. aid to the European Allied powers?

U-Boats were a key asset of the German military. They saturated the Atlantic and were very difficult to avoid, attacking and sinking thousands of merchant ships and killing tens of thousands of seamen.

Explanation:

the civil war was a fulfillment and completion of the constitution, not a revolution against it. changes in culture and society surely affected political life. lincoln hoped to bring the north and south together after the war by healing the nationand making people lose their resentment.

hope this you out just took thus test a min go and mad a 100