Here are your alternatives of going to war:
1. Continue with the status quo. Ignore that UN Security Council Resolution 1441 and the Authorization for Use of Military Force Against Iraq Resolution of 2002, thus proving both the UN and the U.S.A. impotent. Ignore that the UN Oil for Food Program had been completely corrupted, and keep the sanctions in place thus allowing the additional deaths of hundreds of thousands of Iraqis through malnutrition and lack of medicine as a result of Saddam diverting the Oil for Food Program money to building his palaces and his military, and buying off international players to get around the sanctions. With no international presence Saddam would be free to do as he pleased within Iraq, including further rebuilding his military capabilities, developing new WMDs, training new terrorism recruits, financing international terrorism, advising terrorist organizations on the development and use of WMDs, and continue to mass murder and starve the Iraqi people. Other rogue nations and terrorist groups would certainly see this as a sign of weakness in the West and a signal to accelerate their aggression.
2. Lift the UN sanctions against Iraq and allow Saddam to freely participate in worldwide trade and commerce. This might eventually save hundreds of thousands of Iraqis from certain death brought on by starvation and lack of medicine, depending on whether Saddam diverted money to these problems. But it would not necessarily halt Saddam's mass murdering. It would also allow Saddam to develop his oil fields, bringing in huge profits to be spent as he pleased. Of course this would include building his military, developing his WMD programs, including reconstituting his nuclear weapons program, and resuming his harboring, training and funding of international terrorism. This would most certainly have been seen by other rogue countries and terrorist groups as a complete capitulation by the West, and that America and the West could be defeated.
So now what is your choice? The cost of the war has undoubtedly been high for America in terms of casualties, money and reputation. But what of the costs of the alternatives? Would either alternative have saved casualties, money or America's reputation? 9/11 alone cost America over 3,000 of her citizens and almost two trillion dollars in the financial markets (*11). Would have being branded as paper tigers reduced the likelihood of further terrorist attacks on American soil and throughout the world? Or would it have encouraged even more terrorism, especially with an emboldened Saddam Hussein harboring, training and financing further terrorism, and potentially supplying terrorist groups with WMDs? And what of Iraq's innocent citizens? After the fiasco of the hundreds of thousands mass murdered in Rwanda (*12), and the hundreds of thousands of already needless deaths in Iraq, would you have been willing to turn your back on hundreds of thousands more in Iraq? These were your choices: Invasion with thousands of casualties, hundreds of billions of dollars spent, and a suffering of America's reputation. Or a retreating America seen as ripe for defeat by emboldened rogue nations and terror groups, likely resulting in increased worldwide terrorism, maybe eventually with Saddam supplied WMDs. No doubt that WMD terror attacks would have spawned new wars and destroyed the worldwide economy if the response to 9/11 is any indication. And would Libya and North Korea have voluntarily given up their nuclear weapons programs? Not likely. Can anyone reasonably argue that the world would be safer and more stable if Saddam had been allowed to continue as ruler of Iraq? (*13)