Answer:
After the Yalta Conference of February 1945, Stalin, Churchill, and U.S. President Franklin D. ... Roosevelt had agreed to meet following the surrender of Germany to determine the postwar borders in Europe.
Explanation:
European leaders responded to Islamic expansion in a very violent way. Following the initial incursions of the Islamic forces in those years, the European leaders decided it was time to take up arms and fight them in their own lands - what followed were the Crusades.
They helped influence the revolutionary war
