History

Question

20.

What accelerated US involvement in WWI? Check all that apply.

trench warfare

a new 'Preparedness' movement

the sinking of the Lusitania

unrestricted submarine warfare

Answer

Trench warfare, the sinking of the Lusitania, and unrestricted submarine warfare.

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The US involvement in WWI was accelerated by trench warfare, a new 'Preparedness' movement, the sinking of the Lusitania...