President George W. Bush believed that Iraq’s nuclear threat was real. The war was launched. Although Hussein had dabbled in a nuclear program in the past, the weaponry was not there.
The families of those who sacrificed or were wounded should take heart from this achievement: The US eliminated arguably one of the worst dictators since Adolf Hitler. Hussein put to death hundreds of thousands of his own people for political reasons. He eliminated many thousands more Muslims in a war with Iran and an invasion of Kuwait.
Freedom is the very foundation on which the American ethos is built.
The US has a long history of support for oppressed people around the globe, even when its own national security is not immediately threatened. Americans gave their lives in World War II although there was no real German threat to the American homeland. They fought again on behalf of South Koreans, although no North Korean legions were landing on US shores.