The Korean Peninsula Energy Development Organization (KEDO) is an organization founded on March 15, 1995 by the United States, South Korea, and Japan to implement the 1994 U.S.-North Korea Agreed Framework that froze North Korea's indigenous nuclear power plant development centered at the Yongbyon Nuclear Scientific Research Center, that was suspected of being a step in a nuclear weapons program. KEDO's principal activity is to construct a light water reactor nuclear power plant in North Korea to replace North Korea's Magnox type reactors.