North Korea's leader, Kim Jong-un, on 1 January implied that his government may soon test an intercontinental ballistic missile (ICBM), at least if US military exercises near the peninsula continue, which they likely will.
Kim also suggested he would conduct more nuclear tests and many experts believe larger yield tests are imminent.
Responding on Twitter to Kim's annual New Year's Day speech, president-elect Donald Trump on 2 January said a North Korean ICBM capable of reaching parts of the United States "won't happen".
Pyongyang's intentions are clear - it wants to ability to credibly threaten the United States with nuclear strikes - but it is yet unclear how much North Korea has mastered all the necessary technology.
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