Guam

In apparent response to Trump's promise of "fire and fury" in the event of any threat to the United States from North Korea, Pyongyang has said it is "carefully examining" a plan to attack the U.S. Territory of Guam, saying they will engulf the island with an "enveloping fire".

As well as being home to over 162 thousand people, Statista's Martin Armstrong notes that Guam is of key strategic importance to the U.S. military.

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The US sent two B-1B Lancer strategic bombers from Guam's Andersen Air Force Base base to the Korean Peninsula, to practice “attack capabilities” with South Korean jet fighters and hold live-fire drills on Saturday, Yonhap News reported, the latest show of force by the US military after North Korea’s first-ever ICBM test launch on July 4. The pair of US bombers flew conducted a simulated destruction of an enemy ballistic missile launcher and underground facilities, the South's air force said, sending a strong hint to its northern neighbor.