Answer:
Many people were unhappy with their governments.
Explanation:
The factor that made it easy for communism to spread in Eastern Europe is because "Many people were unhappy with their governments."
This is evident in the fact that after world war 1, Stalin used the power of propaganda through radio to popularize the defects of the governments in eastern Europe.
He also secretly recruit policemen to spread Communism in the region. A good example was how he recruited police forces that were unhappy with the government in Poland in 1939.
<span> President Lincoln rescinded Fremont's emancipation proclamation, fearing it might push other Border States (slave states loyal to the Union) into the Confederate camp. Staff corruption, opposition from Missouri’s influential Blair family, and military defeats caused Lincoln to relieve Fremont of his command on November 2, 1861.</span>
Made them unhappy I would think.
It means: the advantage or benefit of all people in society or in a <span>group. it is a noun</span>