Or closer to home, one can look at the American pilots aboard the Enola Gay who unleased the world's first atomic bomb on the citizens of Hiroshima. Not everyone cooperates in the face of such violence. There is a long tradition of conscientious objectors, those whose hearts and minds refuse to follow orders they deem to be immoral. Many are motivated by religious concerns, and consider any participation in killing or war to be against their religion's laws. Others resist government policies out of a sense of justice.
Conscientious objection goes against physical participation in war.
The Central Committee for Conscientious Objectors supports conscientious objectors and promotes individual and collective resistance to war and preparations for war. National Interreligious Service Board for Conscientious Objectors works to extend and defend the rights of conscientious objectors in North, Central and South America, monitoring human rights as they relate to military conscription and conscientious objection. The National Campaign for a Peace Tax Fund advocates for legislation enabling conscientious objection to war and to have the military portion of objector's federal income taxes directed to a special fund for projects that enhance peace. The National War Tax Resistance Coordinating Committee is a coalition of local groups, alternative funds, contacts and counselors working to support, coordinate, and publicize conscientious objection to the payment of taxes for war. The War Resisters League affirms that all war is a crime against humanity.