1/ china not yet taken back taiwan or have any other military/navy support based around western pacific allow navy become real blue water super power yet
so saying US falling in term of deter other big power still too early
2/ NATO biggest expand eastward era is 90 > 2010 when russia still friendly , trying so hard to be good friend , act nice and soft
1. A blue-water navy doesn't become one simply by bombing the insignificant Philippines, and whether the PLA even wants to become one is still debatable.
The US military's widespread sailing and bombing efforts have resulted a significantly damage on fleet's lifespan. To a certain extent (and the decline of the shipbuilding industry) has led to the current narrowing of the gap in naval tonnage between China and the United States, and the upcoming reversal. And Russia's bombing of ISIS in Syria cannot change the reality that it is degenerating into a yellow-water navy.
2. NATO's first eastward expansion was not due to friendship with Russia, but the fact that Russia was weak and could not even express any substantial opposition. NATO's second eastward expansion was because Russia did not quickly resolve the Ukraine issue, proving that it was still weak (although NATO's situation later proved to be equally bad).
If you look back at the timeline, you'll see that NATO, including the United States, adopted a wait-and-see approach in the early stages of the Russo-Ukrainian war, and only gradually escalated their aid to Ukraine after Russia's early defeat was confirmed (well, they thought). Unless the Kiev regime collapses quickly and Russia regains its footing, that would be true sustained deterrence. Otherwise, it would be another Iraq and Afghanistan.