Jan Fischer, American Soldier In His Military Life

International protocols restrict the use, or have even created international bans on weapons, notably weapons of mass destruction. International conventions define what constitutes a war crime and provides for war crimes prosecution. Individual countries also have elaborate codes of military justice, an example being the United States' Uniform Code of Military Justice that can lead to court martial for military personnel found guilty of war crimes.
Military actions are sometimes argued to be justified by furthering a humanitarian cause such as disaster relief operations or in defence of refugees. The term military humanism is used to refer to such actions.
• Antimilitarism
Antimilitarism is the society's social attitude opposed to war between states, and in particular countering arguments based on militarism. Following Hegel's exploration of the relationship between history and violence, antimilistarists argue that there are different types of violence, some of which can be said to be legitimate others non-legitimate. Anarcho-syndicalist Georges Sorel advocated the use of violence as a form of direct action, calling it "revolutionary violence", which he opposed in Reflections on Violence (1908) to the violence inherent in class struggle. Sorel thus followed the International Workingmen's Association theorization of propaganda of the deed.