South Korea has come out saying that under no circumstances will they permit war to break out ON the Korean Penninsula.  The undermines Trump's threats biggly.

Even more biggly is Bannon's interview, where he says there is NO MILITARY solutiion to dealing with North Korea - directly contradicting Trump's threats.  Even more biggly.

Tillerson and Mattis co authored a very public, very post Trump big body statements, making  clear that military action would be avoided.

How can Trump's big body statements about North Korea be viewed by the world as anything more than a total bluff?

His own cabinet is clearly opposed to military action.  His Senior advisor is basically saying military action is preposterous due to the potential loss of life.  A primary ally in the East Asian region, and THE primary ally on the Asian continent (South Korea) is saying it will NOT allow the US to begin military actions on the Korean Penninsula.  

These aren't the words of China or Russia.