This undated photo released by North Korea's official Korean Central News Agency (KCNA) on June 16 shows North Korean leader Kim Jong-Un (C) visiting the Yuphyong Revolutionary Site in North Phyongan Province. North Korea&rsquo;s call for &ldquo;senior-level&rdquo; talks between the Korean War foes signals a shift in policy in Pyongyang after months of acrimony.