In a statement, the South Korean military said it spotted about 180 North Korean military aircraft between 11 a.m. and 3 p.m. local time, a day after Pyongyang is believed to have conducted the failed test of an intercontinental ballistic missile (ICBM).Tensions in the Korean Peninsula began rising Monday, when the “Vigilant Storm” joint military drills began between the United States and South Korea, involving hundreds of aircraft and thousands of service members from both countries, according to the US.Friday’s South Korean deployment included an unspecified number of F-35A stealth fighter jets, the statement said, and the South Korean warplanes participating in the ongoing joint maneuvers had also “maintained a readiness posture,” the South Korean military said.Later, after meeting with his South Korean counterpart at the Pentagon, US Defense Secretary Lloyd Austin accused North Korea of “irresponsible and reckless activities.”“We’ve said before these kinds of activities are destabilizing to the region potentially.In an interview on CNN on Wednesday, US Ambassador to the UN Linda Thomas-Greenfield condemned North Korea’s actions, saying Pyongyang had broken multiple Security Council resolutions."