Answer: Vietnamization was the policy to end the U.S. involvement in the Vietnam war.
Explanation:
War changed because the new policy made it where the U.S. troops involvement was going to end, and they were no longer going to partake in the Vietnam War
Control of the Bosporus and Dardanelles straits was a strategic objective in both World War I and World War II because these straits provide access from the Black Sea to the Mediterranean Sea