Channel News Asia:

The United States and South Korea began one of their largest combined military air drills on Monday (Oct 31), with hundreds of warplanes from both sides staging mock attacks 24 hours a day for the better part of a week.

The operation, called Vigilant Storm, will run until Friday, and will feature about 240 warplanes conducting about 1,600 sorties, the US Air Force said in a statement last week. That number of missions is the highest ever for this annual event, it added.

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