The attack in Pearl Harbor in December 1941 shocked United States. It meant not only the complete destruction of an important naval base and the loss of many lives, but in the first place signified the beginning of a great struggle for nation’s survival. At a time when France falls to Germany, and Russia and Great Britain are at the verge of falling, nothing seemed to prevent the Nazi and its powerful allies to conquer the world. And though the attack in Pearl Harbor was shocking, the nightmare of expected upcoming problems was much greater.