Advances in naval tech made at location B allowed sailors to reach location a
One of the reasons why there was a need for reform in the US during the mid-1800s is because the US was expanding economically at a rapid pace, as well as expanding to the west, and there was practically no government oversight of growth--which led to people and firms being taken advantage of.
Answer:
North Korea
Explanation:
red army liberated in 1945
