Ok, it's good to know you are 15, that means you still have a lot of time to form and progress your opinions. Maybe it's good for you to see the reaction of people who have actual experience with those matters, or have at least thought and learned about it more.
Wrongly termed then (excuse me, but i would not know a better term for it), but again, war has led to some good things. Like aforementioned tech advances. Or some stuff like that. Although i would agree that todays wars are rather meaningless. Atleast WWII had a cause behind it (for both sides too). Today is more of a war over drugs than anything.
I think I kind of grasp were you are coming from with this. Competition, rivalry and pressure to innovate are strong motivating forces for technological progress. And war is a form of heavy competition.
Still, to generalize that war means progress is a big mistake. The potential motivation for progress is opposed by a much higher potential for degeneration and decay of civilization. There are many wars in history that did not further development, but eroded cities, nations and peoples. The antique civilization of Rome with all it's technological and philosophical prowess was eradicated by war, which lead to the period of time known as the dark ages.
The Thirty Years' War in the seventeenth century depopulated and set back parts of Europe for 100 years to come, to name another example.
arcibalde described much better than I could how it is with modern wars.
