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UN chief in unprecedented visit to Pentagon

United Nations Secretary-General Ban Ki-moon speaks during a meeting with US President Barack Obama in the Oval Office of the White House on April 11, 2013 in Washington. Ban became the first UN secretary general to visit the Pentagon Thursday, holding taBan Ki-moon became the first UN secretary general to visit the Pentagon Thursday, holding talks with US military leaders on the crisis over North Korea and a planned peacekeeping mission in Mali. Ban had asked for the meeting amid mounting tensions on the Korean peninsula and drastic threats from the regime in Pyongyang, officials said.