Afghanistan War "A Waste of Blood and Treasure"
As all wars are not morally objectionable, not all wars are permissible. However, even in the situation where use of force becomes permissible, there are certain essential and universally accepted principles that need to be abided. First, war must be the last resort after all other peaceful means to resolve the conflict have failed. Second, the use of force must be for just cause; for example, to evict an invading and occupying force. Third, it must have a reasonable likelihood of success; death and destruction not to be inflicted for vain cause. Lastly, one should not use tactics in a way that causes disproportionate harm.
Judging from the above principles, the eight-year-old US war against Afghanistan trampled every accepted norms and standard conduct of war; a war bereft of reason and uncalled for.