Yet again, another author is concerned by the U.S. military's inability to predict the next war maybe 5+ years ahead.
by Michael Zenko, Foreign Policy
I suppose that's not an uncommon human and institutional imperfection.
At the same time, I do care about it 100% in 0% of the time.
Focus on deterrence for peace and eventual actual defence and you don't need to worry where you'll go to for the next stupid war. The next war will come to you, and battles will be fought on a battlefield you know well and in a mode you know well.
That is, if war happens at all. You might be successful in winning the peace instead. The U.S. military had a much better track record at this, with only two exceptions (one was about imperial policy and an attack on a mere overseas territory while the other was a mere crime).