1. The engineers made pontoons so that they could easily cross rivers.
2. They dug beneath the enemy's city walls to weaken them.
3. Used battering rams to hammered the enemy city's gates.
Wen TI was an emperor of the Sui dynasty and also founded it.
Answer:
the other person's link is the correct answer to your question
Answer:
was not our fight and until Germany declared unrestricted submarine warfare we had no reasons to enter it. Many historians feels that the U.S. entering the war was a bad idea and resulted in the pains of the rest of the 20th Century. That if they had stayed out