How did saladin conquer jerusalmen?

When was Royal Mail founded? How did world war 2 spies get on the other side of enemy lines? When and why did D-day start? Why Hanoi's deception operations were relatively easy? How did Russian revolution affect Russia in World War 1? Who was the commander of the union troops before grant? Which nations have nuclear capabilities? What does the war term snafu mean? Did great Britain have a foreign policy during world war 2? What was Eisenhower's policy of massive retaliation? Is the National Guard considered the military? What does h a n d mean? What Sacrifices did women make during war? How is power a cause of war? What were the three crises of 1956? How did island hopping help us win the war and how did the Battle of Midway play a big part in World War 2? Where did Battle of Midway take place during World War 2? What is the letter between k and m? What battleships were in World War 1? Who was fighting who in ww11?