SEOUL, Feb 2 (Reuters) - North Korea said on Thursday that drills by the United States and its allies have reached an "extreme red-line" and threaten to turn the peninsula into a "huge war arsenal and a more critical war zone. ""We have made clear we have no hostile intent toward the DPRK and seek serious and sustained diplomacy to address the full range of issues of concern to both countries and the region," said a spokesperson for the White House National Security Council, refering to the Democratic People's Republic of Korea, the official name for North Korea. Guterres said any resumption of nuclear testing by North Korea would deal a devastating blow to regional and international security, and reaffirmed support to build lasting peace on the Korean peninsula, according to Park's office