Vhardman you may think that the purpose of an army is "to make war". It is even true in some countries, especially expansionist ones. However most developed countries consider the purpose of the army to prevent wars. Maybe this difference in opinion is why you have such a hard time to understand international criticism of the IDF's actions? Also I just wanted to point out that your conclusion that armies are required to lose wars in order to not be criticised is complete BS, but you probably knew that already. It has nothing to do with who wins and who loses, it is about the actual deeds that lead up to that win or loss. So if you are disregarding civilians' lives, health and property you may find yourself being criticised regardless of whether you win or lose. Just look at Cast Lead, the actions of both Hamas and the IDF are being condemned. Surely they can't both be winners, right?
Police disperse hundreds in brawl in Kafr Manda, northern Israel (Haaretz)
from the article: IDF to release new findings defending Gaza war strike