That concept works as long as all parties live up to their promises in both word and deed.
The problem has been pointed out about NATO participation and funding by European Members for example.
The UK removing from service the ASW Nimrods long before the P-8's came on line despite the advances by the Russians in their Submarine fleet is another.
The US cut the CV fleet but still keeps a significant number of them.
Now we see the USMC going to a Defense Model from an Offense Model.
Our National Strategy used to require the US to be able to fight two wars simultaneously.....now there is some question of whether we are capable of winning a single War with a Peer or Near Peer foe.
Naval warfare changes with technology for both defense and offense.....as all warfare has done since times immemorial.
National strategies must ensure our side stays well in advance of any possible oppoonents or array of possible opponents.
Are we succeeding in that?
Are Western Militaries on the decline due to funding, wokism, or societal values?
Can Western forces mobilize the needed combat assets and manpower for an unlimited War owing to having reserve Manpower, assets, and the ability to grow and field what is required?
If we look back to the early days of WWII....and the five or so years before hostilities kicked off.....are we in the same situation as then?