What warfare was used in world war 2?

submarine warfare

Explanation:

Submarine fighting occurred in the Pacific and European performance centers during World War II, and submarines additionally played helpful and uncommon activities functions in the mission against Japan.

Blitzkrieg is a term used to describe a method of offensive warfare designed to strike a swift, focused blow at an enemy using mobile, maneuverable forces, including armored tanks and air support. Such an attack ideally leads to a quick victory, limiting the loss of soldiers and artillery. that's all I know on this subject or I wouldn't given you more information.

Explanation:

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an effect of the steamboat's popularity was that people began building canals in the united states and europe. this was done to find another way to transport goods across the country and in that time, transportation using the river was very slow and dangerous. it depended entirely on manpower and the current of the river. that all changed in the late 1700's when steamboats were introduced. they soon revolutionized travel and trade through the river and dominated the waterways. eventually, other means of transportation took over from the steamboats, but there was a time that they the united states to expand to the west.

i also think it is c