No, that's wrong. The correct answer is C.
Nationalism was important because both countries consisted of numerous smaller states where the people of same ethnicity lived except in different states. That meant that foreign forces could easily ally themselves with one against the others. What they all had was that they all shared ethnicity and religion which was enough to give them an idea of a country for all Germans or all Italians, which is what they did and they gave up their smaller states for the idea of one grand nation.
Basically a combination of mass executions, dictatorships, and mass poverty.
The answer is C bc it’s a primary source since he was a person who lived through it yk
Massive retaliation and brinkmanship were different from the previous policies of the military because these techniques did not rely on strong attacks but rather, on the possibility of the intense damage that could result from using the available weapons of the country.
