Free navigation of the seas is what's at stake.
If you don't think that's in the core strategic interests of the United States, there's no hope for you.
Ah baloney....ships don’t sail on islands. I understand the issue but don’t agree it is all that important to our interests as these island and Chinese on them don’t stop our ships form sailing these waters even if that is what the Chinese intend.
There are other way to skin Chinese cats than start a war with them over these artificial islands.