Weapons in WW1 were being mass produced and of a greater quality than those of wars before. Barbed wire, airplanes, poisonous gas, submarines etc were introduced which revolutionized war today. Trench warfare was countered and is no longer used to fight.
I’m not sure if it’s right but I think it’s D I’m not sure :-)
They made a segnifcant turn towards a mareket econmy.
thats the answer a market ecomy
