What role did the un play in this crisis? did un involvement seem to or hurt the situation?

If you are talking about the 1990s, the U.N. was not able to help much.  In Rwanda, it stood by as the ethnic cleansing ran wild and many died as a result. In Bosnia, many U,N. peacekeepers were either held hostage or shot by militias.  It was the intervention of the French in Rwanda and Americans in Bosnia that turned things around.

an expansion is one of two basic business cycle phases; the other is contraction. the transition from expansion to contraction is a peak, and the changeover from contraction to expansion is a trough.

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.