North Korea Launches Unidentified Projectiles Into Sea (Source Huffingtonpost.com)North Korea has fired multiple unidentified projectiles into the sea off its east coast, “_blank” South Korea’s news agency Yonhap reports. The launches on Friday build on growing tensions between the U.S. and the isolated nation in recent weeks. South Korea’s military said the projectiles flew more than 150 miles, and added it was still analyzing the development, according to Yonhap. The launches come days after the U.S. and South Korea started the 10-day  exercise-ulchi-freedom-guardian- ” Ulchi Freedom Guardian military exercises, an annual joint military drill the two countries have held in some form for more than half a century. While the simulated war exercise is intended to help establish defense techniques for a potential attack, North Korea views the drills as confrontational. As the exercises commenced on Monday, North Korea once again denounced U.S. President  /donald-trump?ncid=edlinkushpmg00000313″ Donald Trump, who had promised  donald-trump-north-korea-threat “fire and fury” earlier this month if Pyongyang threatened the United States.