During the Iraq War, which began with the 2003 invasion of Iraq, there were United States military personnel who refused to participate, or continue to participate, in that specific war. Their refusal meant that they faced the possibility of punishment in the United States according to Article 85 of the US Uniform Code of Military Justice. For that reason some of them chose to go to Canada as a place of refuge. The choice of these US Iraq war resisters to go to Canada has led to considerable debate in Canada's society, press, legal arenas, and political arenas. Much of the debate on this issue has been due to the controversial nature of the Iraq War itself. Among the many elements of that debate are Canada's relationship to the Iraq war, and Canada's relationship to the US, its largest trading partner.
Some of the Iraq war resisters enlisted in the United States military before the Iraq War, and some enlisted after it began. Before their refusal to participate in that war, some had already initially participated, and some had not. Each had their own reasons for initially deciding to enlist and/or participate in that war. Nevertheless, it's not irrational to assume that the public relations preparations for 2003 invasion of Iraq, and media coverage of the Iraq War played a part in many of those initial decisions. Later, when these soldiers encountered differing views on the 2003 invasion of Iraq and issues of the legality of the Iraq War, they questioned the legitimacy of the 2003 invasion of Iraq. Some of them then became disillusioned with all war, whereas others became "selective conscientious objectors".