The F-15K strike fighter built by Boeing for the Republic of Korea Air Force is the newest variant of the combat-proven F-15E Strike Eagle. Equipped with the latest technological upgrades, it is more lethal, survivable, and maintainable than its predecessor and it is the only U.S.-produced fighter capable of long-range precision strike missions without escort, day or night, in any weather. Two aircraft were delivered October 2005 during the Seoul Air Show. Two more F-15Ks are scheduled to be delivered through August 2008.