Mechanized Warfare is the one that allowed for the safe transport of American troops to Europe. Merchanized Warfare ii also known as Armoured warfare or tank warfare which is the use of armoured fighting vehicles in mordern warfare. It is used to transport safely the troops of America to Europe.
Answer:
D. His improvements allowed the steam engine to run more efficiently on oil instead of coal.
Im pretty sure its c. England and France:)
