In effect, the VP shouts over the DMZ to North Korea, "See what we did in Syria?  See what we did in Afghanistan?"  Implied: we could do the same to you...our ships are on the way, don't forget!

OK, let's re-examine the latest examples of "strength and resolve."  Except we can't. 
10 days now since those missile cruisers sent almost 60 death-tubes into Syria.  What do we know for sure?  Well, they landed. Somewhere.   I've searched in vain for verifiable follow-up stories AFTER April 7.  Syria: 9 civilians dead. TASS said damage minimal--half the missiles missed. Only Fox News came on-air with a map showing destruction.  No other MSM has reported anything? Why? Bloggers? Mostly   speculation.

Afghanistan: Whoa!  "Mother of all bombs"...does what?  Wrecks tunnels (SEALS with satchel explosives might have done the same) and 36 dead.  36? That's it??

The North Koreans are likely NOT shaking in their shoes over this. Puts their launch "failure" into perspective, does it not?