30 Dec
US President Donald Trump's national security adviser said the United States has many options to respond if North Korea resumes long-range ballistic missile tests or nuclear tests.
Robert O'Brien was speaking in an interview with ABC News on Sunday as Pyongyang suggested it may take action unless the US makes concessions for progress on denuclearization talks by the end of this year.
The North has warned that it is entirely up to the US what kind of "Christmas gift" it gets.
O'Brien said the North's leader, Kim Jong Un, may have reconsidered his threat, but added that Washington will have to wait and see.
O'Brien said that if North Korea launches a long-range ballistic missile or conducts a nuclear test again, the US will be "extraordinary disappointed" and it will demonstrate that disappointment.
He said Washington has "a lot of tools in its tool kit" and that it could impose additional pressure on North Korea.
NHK
