I do agree though it has to be cut, but maybe go smaller like 15% and then set a cap on % to GDP or something.
I would assume that doing this would mean we need some sort of reconciliation and truce between the Taliban and Afghan govt. Then we could focus on Al Queda and use drones and intell to dog them instead of tons of troops opn the ground.
It's risky move though, but really unless that move made how can you cut military spending? We can't leave troops out there without proper support right? It's either spend or bring 50% of them home from around the world.