A Fox News article said “The United States will help write an interim Iraqi constitution that embodies American values and will lead to the creation of a new government, America's chief postwar administrator in Iraq said Sunday.” (See link below). Above is a rather recent example of ethnocentrism but despite this Iraq has written a new constitution. In this most recent constitution some of the laws have changed such as the one about the military. In Article 9 it reads, “Military service shall be regulated by law,.” Not perfect but better than before.
Were Iraq to be under the same Charter of Rights and Freedoms as Canada many of their already existing laws would remain the same however there would be some, such as the military rule, that would become nonexistent and others elements of the Charter that would remain.