The army said in a statement distributed Wednesday by the state-run news agency that it is studying a plan to create an "enveloping fire" in areas around Guam with medium- to long-range ballistic missiles. The U.S. territory is home to Andersen Air Force Base.
WATCH VIDEO: President Trump warns NKorea of 'fire and fury'
President Trump: North Korea will be met with 'fire and fury'
The statement says the move is in response to a recent U.S. ICBM test.
It comes as President Donald Trump says North Korea "will be met with fire and fury like the world has never seen" if it makes any more threats to the U.S.
Trump issued the warning during a briefing on opioid addiction at his golf course in Bedminster, New Jersey.
RELATED: North Korea promises 'thousands-fold' revenge against US over sanctions
A Japanese defense paper and a U.S. media report Tuesday said North Korea may have successfully produced a miniaturized nuclear warhead that can fit inside its missiles.
That's a key benchmark in the country's attempt to become a full-fledged nuclear power.
Washington's alarm over North Korean leader Kim Jong Un's pursuit of a nuclear capability has intensified in the past month after the North conducted two tests of intercontinental ballistic missiles last month.
Click here to read more stories about President Donald Trump.