It doesn't do more then destroy human beings, waste resources, cause stagnation and problems, aswell as replace the old order with a new one. It doesn't have anymore qualities then that. The fact that some people are stupid enough to want to go to war in the first place and then later regret is really obvious. It's far from beautifull to want to rebuild infrastructure, it's a logical conclusion when recovering.
Anyone whose actually directly been in a combat zone and seen warfare knows that war does anything but invoke positive feelings or fascination in a normal human being. It is probably the worst and most self-undermining state mankind are able to conceive. Those who've been enthusiastic about it quickly lose their misconceptions once they experience it and view it's detrimental effects. While certainly it is interesting, it should not be considered glamorous.