Which was not a challenge faced by America during the start of the WWI? establishing borders with Canada and Mexico
recovering from economic problems
building economic ties to Latin America
trading with member of both the Allied and Central powers

"establishing borders with Canada and Mexico"

there are a number of different ideologies that come into conflict with regard to immigrants and immigration to the us.

when world war i broke out across europe in 1914, president woodrow wilson proclaimed the united states would remain neutral, and many americans supported this policy of nonintervention. however, public opinion about neutrality started to change after the sinking of the british ocean liner lusitania by a german u-boat in 1915; almost 2,000 people perished, including 128 americans. along with news of the zimmerman telegram threatening an alliance between germany and mexico, wilson asked congress for a declaration of war against germany. the u.s. officially entered the conflict on april 6, 1917.