McCain is wrong - No mercenaries

Today, Senator John McCain said that Iraq will continue to need our troops and we need to have continued presence in Iraq. There is some confusion here. McCain is wrong.
Iraq can not control our troops for any reason. Our troops were deployed for WAR. Once the war is over, the troops can return home. Iraq may need Americans to build and modernize their country, but they can not use our troops. Nation-building is not war and it is not a duty for Americans to pay for Iraq nation-building. Iraq has many resources and many private companies are in Iraq making lots of money, along with the corrupt government officials. America has a huge deficit and is paying for the Iraq war with a credit card from China. It does not make any sense
We need to bring all of our military stuff home, along with our soldiers. There are basically three ways for Iraq to get non-war Americans into the country for nation-building. First, Iraq can hire a mercenary military to keep their people under control for years to come. Second, Iraq can hire American corporations, businesses and non-profits to work on various projects and needs. Lastly, Iraq can contract with the US to send non -military volunteer workers for various jobs. Anyone who wishes to volunteer to live and work in Iraq can do so via the State Department and be paid higher wages with benefits by IRAQ, not the United States.
Our military is not mercenary. Hence, countries can not pay our soldiers to come in and fight their wars. The US military only fights to protect and defend the US. The Foreign Legion is a mercenary military  group that takes men from any country to fight anywhere for pay. So, to hire a military, Iraq needs to look into hiring the Foreign Legion. If the US puts non-military persons in peril to build Iraq, there is every chance a war build-up could restart if the safety of these people is jeopardized. Iraq has already said that there will be no immunity and all Americans in Iraq will be subject to Iraqi law. Having seen the videos of Qaddafi's torture and death, I think most Americans will not be prepared for the Iraqi justice system. In addition, there are still hundreds of thousands of IED's hidden throughout the country.
The best situation is for private corporations and non-profits to send employees to Iraq, the companies and workers will be paid by Iraq, and the businesses will be responsible for the care, safety and costs involved. This will also help both the deficit and the US unemployment situation.