In which region would irrigation systems be particularly important for early north americans?

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.

explanation:

to keep us neatruel and not get involved in any wars

he assumed control of treaty negotiations with a hostile power