Answer:
Correct answer is Secretary of State
.
Explanation:
Dulles was a famous figure in the American politics, especially during Cold War, and between 1953 and 1959 he was a Secretary of State.
Charles Erwin Wilson, Neil H. McElroy and Thomas S. Gates Jr. were Secretary of Defense during Eisenhower's presidency.
Gates was also Secretary of Navy.
Answer:
I believe that it was the Meiji Restoration : )
Trench warfare
Probably the most important was the introduction of high explosive shells, which dramatically increased the lethality of artillery over the 19th-century equivalents.