The answer for your question is 1666 Kilometers
Answer:
The Crusades
With the Seijuk Turks of central Asia bearing down on Constantinople, Emperor Alexius I turned to the West for help, resulting in the declaration of “holy war” by Pope Urban II at Clermont, France, that began the First Crusade
<span>The U.S. needed to contain communism and not let South Vietnam and surrounding countries fall to communism.
The U.S. government saw its involvement in the war as a way to prevent communism.</span>
