War, on the view of Immanuel Kant

War is an armed conflicts between two or more groups, commonly nations. It tends to cause a great amount of suffering to all parties involved and is therefore usually undesirable. On the view of Immanuel Kant, they would generally support the war to cancel out the initial aggression by one side or group. This idea is basically from the idea of the principle of equality in Kantian Ethics. In the idea of principle of equality, there is a concentration on the motives of an act, with this ideology it would be theoretically possible to avoid the suffering of anyone. People would only suffer as a result of their own decisions to breach universal laws. The idea that everyone has a duty to be moral is appealing. This means that selfishness is encouraged to perfrom acts which result from desirable morives for others. This idea leads to make a thought of an ambiguity over what happens when two duties conflict, defending oneself one could not kill even if one was about to be killed. This thoughts and ideas seem hard to understand, but the Kantian ethists' idea is very simple. On their view, human diserves the war, which they want to defend or attack, and we can't stop the war between two or more groups until they understand what is right and wrong, even they kill people each other.