In 1863, one of the bloodiest domestic riots in the united states occurred in when 120 died as irish-american laborers attacked african americans and opposed the draft.

Why did un coalition troops battle iraqi forces in 1991? iraq had invaded saudi arabia, along with its other border nations.iraq had invaded kuwait, which was a major source of the world's oil.the united nations wanted to remove saddam hussein from power.the united nations wanted to prevent the trade of illegal drugs.