The Real Secret of the South China Sea

That spells out inevitable escalation further on down the sea lanes. China, slowly but surely, is developing an array of sophisticated weapons which could ultimately "deny" the South China Sea to the US Navy, as the Beltway is very much aware. 

...

The US, for its part, is all about Exceptionalism and Manifest Destiny. As it stands, more than Russia's western borderlands, the Baltics or "Syraq", this is where the hegemon "rules" are really being contested. And the stakes couldn't be higher. That'll be the day when the US Navy is "denied" from the South China Sea; and that'll be the end of its imperial hegemony.