I doubt that the invasion of Iraq was motivated by concern for the well-being of its citizens or the security of the US's. Iraq had as much to do with terrorism as many other nations in the world. Far less than some. And Saddam Hussein was not a stand-out candidate for worst dictator in the world. There are many regimes in the world just as bad, if not worse. Iraq posed little to no threat to the USA at the time of invasion. This has been proven. The "intelligence" that was used in the USA and the UK to justify the invasion has been acknowledged, on both sides of the atlantic, to being exaggerated by those governments to mislead our nations into an illegal war of conquest.

The war in Iraq, as with any war, has made the world more dangerous.