It would be "industrialization," that was a significant factor in both the german wars for unification and United States' Civil War, since Industrialization led to an irreconcilable economic split between two more major segments of each area.
B. The Manhattan Project. and the location (Los Alamos NM) was referred to as the Manhattan engineering district
US & Soviet, but Soviet was more.
Answer:
To Unify all people of Slavic ancestry.
Explanation: