Principles of Just War

The Principles of Just War are guidelines to determine when it's morally acceptable to engage in war. They include just cause (lasting and serious injustice), proper authority (declared by a legitimate leader), right intention (aiming for peace and justice), proportionality (defending only as much as needed), last resort (after peaceful options are exhausted), and reasonable chance of success. These principles aim to prevent unnecessary suffering and ensure war is fought ethically, balancing the pursuit of justice with the moral costs involved.