For decades North Korea has threatened to turn enemy cities into a “sea of fire,” even as it doggedly worked on building a nuclear weapons program that could back up its belligerent words.
Now, as North Korea conducts another torrid run of powerful weapons tests — and threatens pre-emptive nuclear strikes on Washington and Seoul — it may be taking inspiration from the fiery rhetoric of the leader of a nuclear-armed member of the U.N. Security Council: Russia's Vladimir Putin.
