FILE - In this Dec. 23, 2010 file photo, long range rockets are fired in a mountain range during the largest joint air and ground military exercises of the year on the Seungjin Fire Training Field in mountainous Pocheon, 20 miles (30 kilometers) from the Koreas' heavily fortified border, South Korea, a month after North Korea's deadly shelling of a front-line island. Once again, the Koreas are trying to disentangle themselves from violence and threats of war in Aug. 2015, - this time in tense talks that have dragged out in two marathon sessions over three days. Skepticism over success abounds, but the rivals have proven time and again over the decades their mastery at pulling back from the brink. (AP Photo/Wally Santana, Pool, File)