MORE | Inter-Korean Tensions: North Korea is exploiting the inter-Korean military tensions caused by the September 21 landmine explosion incident to continue its frontline military build-up along the Military Demarcation Line (MDL). North Korea could attempt to achieve unilateral military concessions from South Korea by threatening military retaliation. North Korea announced plans to restart loudspeaker broadcasts and continue fortifications along the inter-Korean border on October 21. Pyongyang likely seeks to impede South Korean operations along the Demilitarized Zone (DMZ) under the guise of protecting North Korean sovereignty.