What were the causes of the second Gulf War and it’s lasting effects?

In all, an estimated 8,000 to 10,000 Iraqi forces were killed, in comparison with only 300 coalition troops. Though the Gulf War was recognized as a decisive victory for the coalition, Kuwait and Iraq suffered enormous damage, and Saddam Hussein was not forced from power

The answer is slavery. In Lincoln's Lyceum Address he basically said that the slavery industry could corrupt the federal government and endanger American democracy.