Answer:
"John (“Jack”) Reed wasn’t looking backward to the French Revolution or even the Paris Commune when he chronicled the seizure of power of the Russian Revolution of 1917. As a 30-year-old independent radical journalist, he was looking at it with fresh eyes. What he saw was not just the overthrow of a repressive monarchist oligarchy and its attendant bourgeois class, but a vast democratic, majoritarian movement based on “soviets,” or councils, made up of workers, soldiers, and peasants. Although he had been embedded in Pancho Villa’s rebel army in Mexico and covered Industrial Workers of the World strikes in New Jersey and miners’ struggles in Colorado, it was witnessing the cataclysmic events in Russia that confirmed him as a revolutionary."-Ten Days That Shook the World by John Reed
The answer is weathering. Weathering is where rocks or other materials are broken down because of forces like wind or water. This is different than erosion, which is the process where the broken down materials are moved.
The reason block civil war Soviet Union blockaded West Berlin in 1948