North Korea on Sunday accused Japan of "illegally intruding" into waters over which it exercises maritime rights and warned of possible "strong countermeasures."The Foreign Ministry, in a post on its website, said the problem affecting North Korea's "economic waters" in the Sea of Japan, which it called the "East Sea" by its Korean name, "has become a reality in recent years."It said the issue was discussed Saturday at a conference joined by the Standing Committee of the Supreme People's Assembly, the General Staff of the Korean People's Army, the Foreign Ministry and the Ministry of Land a…READ FULL ARTICLE