U.S. Vice President Mike Pence visited on Monday the demilitarized zone separating the two Koreas, following a failed missile test by North Korea the previous day, the U.S. military said.The DMZ visit by Pence, in South Korea on the first leg of his 10-day trip to the Asia-Pacific region, came at a time when North Korea has been ratcheting up tensions with a series of ballistic missile launches and fears Pyongyang could conduct its sixth nuclear test.Prior to that, Pence visited a U.S. military camp near the 4-kilometer-wide DMZ for a briefing with U.S. military officials based in South Kor…READ FULL ARTICLE