Education
One of the most important things we can do for our children is teach them how to think for themselves. When they learn this to a sufficient level then they'll be able to see through the fog of propaganda that the government vomits out trying to convince us to support all its idiotic, pointless and wasteful wars. Starve the beast by gaining the mental tools to realize that maybe not voluntarily selling yourself into slavery by joining the military is the most prudent way to go. You'll be doing us all a favor, believe me.