He is referring to the bombing of Britain by Hitler's forces (also known as the Nazis). He was also said to have stated about this "It is not the size of the dog in the fight; but the size of the fight in the dog."
Answer:
allow for the movement of goods, services, and people across borders and to eliminate tariffs among member nations
In the 1920s, many rural banks failed because banks had speculated in stocks. This in turn, led to failure of such banks and then soon after the Great Depression followed.
Stagnate. A stalemate. Due to the trench warfare.