Answer:
the us had a policy of appeasement
World War II, also known as the Second World War, was a global war that lasted from 1939 to 1945. The Second World War was started by Germany in an unprovoked attack on Poland. Britain and France declared war on Germany after Hitler had refused to abort his invasion of Poland.
World War 2 was fought between two groups of countries. On one side were the Axis Powers, including Germany, Italy and Japan. On the other side were the Allies. They included Britain, France, Australia, Canada, New Zealand, India, the Soviet Union, China and the United States of America.
After Saladin captured Aleppo he completed the conquest of Muslim Syria but he failed to take over the Zengid stronghold of Mosul.
Some benefits the Crusaders had even though they were not successful were that they increased the authority of the king and kings passed taxes to pay for the crusades.
The way the economic system changed in Europe is the the population began rising, technology began changing, more farming improvements, and trade began improving.
Hope this Helps!!
Yup what he said is right !