No enforcement mechanism

The proposed new United Nations sanctions against North Korea (DPRK) look pretty strong on paper, according to the Associated Press. The financial sanctions alone appear to be stronger and likely even more effective than the Banco Delta Asia sanctions of 2005 (the funds there unfrozen as part of the Six Party Talks in 2007), but...

...especially in regard to the provisions for ship inspections on the high seas or in seaports if the ships are reasonably suspected of carrying prohibited arms, including nuclear- and missile-related items...

The draft U.N. resolution does not authorize the use of military action to enforce any of its provisions

Nothing to worry about there, nope.