Two F-35A stealth fighter jets to arrive at Cheongju Air Base on Friday

Two F-35A stealth fighter jets arrive at Cheongju Air Base this afternoon from the U.S.... giving South Korea's Air Force the capability of evading radar detection.The jets will likely be assigned to combat units starting in April or May.Following a 2014 contract, South Korea plans to deploy all of the 40 F-35A jets in ordered by 2021.The South Korean military is scheduled to have ten jets delivered by the end of this year.The F-35As will play a key role in South Korea's envisioned Kill Chain pre-emptive strike system.