Answer:
the use of poison gas and machine guns
Explanation:
Aerial attacks weren't really a thing, unrestricted submarine warfare was a reason why the US joined the war but not a factor in high casualty rates, and blimps using direct artillery fire isnt as practical as machine guns and poison gas
The President's Cabinet is your answer.
Soldiers from colonies around the world fought in the war. Colonies became a source of manpower and raw materials. European colonies were not passive, while there was war in Europe, they were actively involved in the fight.
I think the answer is the first one
Answer:
on 1492
on the place called Hispaniola
