A "clear and present danger" - that's what the U.S. Secretary of Defense James Mattis says about North Korea.
Pyongyang has carried out a number of missile tests this year putting the region on edge.
The UN Security Council has voted unanimously to sanction 14 North Korean individuals and 4 entities.
China, which defended Pyongyang in the past, has sided with the other members to pass these measures.
But what will it take to deter North Korea's nuclear ambitions?
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