What´s Just War Theory?

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The Just War theory is a set of educated guidelines for determining justifiable and unjustifiable implementation of tactics during armed conflict. Many Just War theories also attempt to convey how the use of arms might be altered, restrained, made more humane, and ultimately aimed towards establishing lasting peace and justice. The Just War Theory stands by the notion of fighting for peace, that is, when all options are weighed.

What makes sense in theory, many times fail when put into action. World War I was touted in the U.S. as the “solution to end war.” However, we know that this was not the case. Armed human conflicts are complex and dynamic, they are much more difficult to control than something such as a natural disaster. The ultimate justifying aim of the resort to arms is to protect innocent lives, however, in many cases collateral damage is unavoidable.
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It is a field of critical ethical reflection and moral decision making. This is the reason there are nearly as many Just War theories as there are just war theorists. Just War theorists are focused on the grounds for going to war in the first place, or Jus ad Bellum principles, and with that standards of ethical conduct that soldiers are expected to abide by while in combat, or Jus in Bello principles. Historically, studies and arguments of ethical theory have helped lay the foundation for evolving principles, conventions, and policies that coincide with justification for going to war and rules while engaged in

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