In 1917, Germany attacked some passengers in submarines from the US that led the US to assist in WW1. Hope this helps!
Answer:
Britain had the first train system, which gave them the best advantage in transporting coal
Explanation:
The Nuclear Non-Proliferation Treaty went into effect beginning in 1970 for a period of 25 years. In 1995, an international conference C) renewed it permanently.
Because it required less work to make??