How did world war 1 contribute to europe's economic weaknesses leading up to the great?

The scale of the destruction left much of Europe's infrastructure in need of rebuilding.

answer: what was the us involvement in ww1? although the u.s. tried to remain neutral when ww1 broke out, it finally joined on april 6, 1917 after declaring war on germany. the reason for america to become involved in ww1 was germany's unrestricted submarine warfare, which had already sunk several american merchant ships.

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