Seoul, South Korea  —  The US Air Force is putting a permanent drone presence on the Korean Peninsula, reviving a World War II-era squadron to bolster security amid simmering military tensions in the region. The 431st Expeditionary Reconnaissance Squadron was activated on Monday at Kunsan Air Base on South Korea’s west coast, south of the capital Seoul. It will fly MQ-9 Reaper drones from the installation. It’s another move towards strengthening the US military’s air capabilities on the