N Korea hits Biden's ‘provocation', threatens more arms build-up
North Korea threatened a further military build-up on Saturday in response to Joe Biden's condemnation of this week's missile launches, a weapons test that marked Pyongyang's first substantive provocation since the US president took office.
The nuclear-armed North has a long history of using weapons tests to ramp up tensions, in a carefully calibrated process to try to forward its objectives.
