Israel Pakistan,India, north Korea, Iran ,have or want the bomb.
Serving service men in the 1970s said we have it, I think we do.
America may or may not come, to our rescue.
but MAD would.

At this time China is intending to build 8 carrier fleets,these carriers are nuclear and as big or bigger than the Nimitz class carriers.And with India,China and russia teaming up to build the new generation stealth firhter looks promising.