The US military has flown a B-1B bomber over South Korea as part of a massive joint aerial drill, in a move seen as a warning to the North.
The B-1B Lancer plane simulated bombing a military field.
The drill is taking place a week after Pyongyang fired what it claimed was a new intercontinental ballistic missile which could hit mainland US.
The US has previously deployed bombers as a show of force after North Korean missile or nuclear tests.
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