Identify Two new weapons of war employed during the First World War.
- Use of poison gas
- Use of aeroplane
- Use of tanks
- Use of submarines
- Use of battleships
- Identify the main factor that prompted the U.S.A to join the First World War in 1917.
- Germans declaration of unrestricted submarine warfare/sinking of the US ship.
![]() |
Virus-free.www.avast.com |