I deny it's the "worst". One of the "worst", maybe. But, even then, there have been perfectly honorable wars which could be described as, so far from being despicable, entirely necessary and proper.
I was just hearing on the Northwest Cable News about police in Washington finally finding the body of a missing 13-year old girl who - it turns out - was abducted, raped, and stabbed to death. I consider THAT far worse than armed combatants going into battle forewarned of their possible fate.
When using words like "worst" you really need to think twice about what you're saying...unless, of course, you consider all war as being worse than capital victimization of innocents.
FYI, armed or otherwise violent combat is not the only madness of war...come to think of it, it is just a (and get this) small necessary part.