Answer:
Columbus traveled to the Western hemisphere or the so-called landfall controversy.
A government that killed millions of people in Cambodia
Answer:
Once locked in war, Vietnam and the United States have built mature ties rooted in mutual ... Four decades after the end of the Vietnam War, the relationship between the United States and Vietnam has changed remarkably.
Explanation:
I believe the correct answer is the third option: it increases the demand for steel since steel was used to make rail cars and tracks.
