i understood we needed to have wars to avoid having mountains of obsolete weapons, in much the same way the eu had butter mountains etc. thats the benefit then, you dont have to live next to warehouses of last years bombs. And then there's beauty, the wide, open, unforgettable streets of paris....deliberate act of war against ones own people, get the tanks in nice n quick next time they revolt. my more sensible answer is that once a war is history rather than present day, i cannot see how you can identify the good or the bad that it has done. the world has been shaped by war, it is what it is as a result of human conflicts with each other and with nature (which will take me into a monlogue on art, so i'll shut up). :-)