We'll see.

"Trump wants U.S., China and Russia to cut military spending in half"

https://www.axios.com/2025/02/13/trump-china-russia-military...

Yet he is unwilling to cut a single cent, indeed there's a 13% increase for defense spending

https://www.airandspaceforces.com/trump-proposes-1-trillion-...

Pulling out of nato will reduce revenue to US defence manufacturers, so I'd expect defense spending to increase even further thanks to the industrial-military complex

I don't think that's quite how it works.