No. War is the natural result when the deficit of supply as compared to demand reaches a certain breaking point. Certainly, we fight wars for other reasons, in some cases religious, etc, but these are the exception, not the rule.
Wars are primarily fought over territory, resources, control, and power. They aren't limited to our species either- certainly, our technology and sentience make our wars larger, more impressive, and more catastrophic to the world around us, but we are not the only species that makes war.
In fact, we're one of many species that makes war in some form, ranging from packs of higher primates that will fight other packs over territory, food/water sources, and whatnot, all the way down to colonies of ants that will invade other colonies, slaughter the adults, take all the stored food they can grab, and even the other colonies larvae, to be used as slave labor.
All that said, given the fact that we are intelligent, sentient creatures, one would assume we could work it out so that things are divided to the point where noone has to fight.
The problem is, on top of being intelligent, sentient creatures, we are also at the whim of primal instincts and irrational emotions, to a far greater extent than most realize.
The only way that resources could be distributed to the point where nobody was lacking and everyone's needs AND wants were met would be to live in a global socialist society- And this won't work, because the only way to enforce that stability is to almost completely eliminate individual rights. As freedom loving animals, we don't have it in us to stand for that permanently, and there would be revolution and war for freedom, and then we're back to square one, with people fighting for territory and resources.
And this doesn't even TOUCH on war that exists for the purpose of power, control, and ideology- these concepts would have to be completely purged from mankind to prevent these aspects from causing violence and eventually escalating to warfare.
And without ambition and ideology, are we truly anything more than animals?
War is an unfortunate fact of life for us and for all species that engage in it, regardless of the reasons.