SEOUL: More than 200 South Korean and United States fighter jets are due to fly around the clock for five days this week in what would mark the largest number of sorties flown in training by the allies, South Korea's air force said on Tuesday (Aug 20). The drills are part of the annual Ulchi Freedom Shield exercises that are designed to boost the joint readiness of the South Korean and US militaries against threats from North Korea, it said. Aircraft on defensive patrol flights are being