>> nic robertson, thank you so much for that story. on to the korean peninsula where tensions are high and rhetoric is high as well. there are efforts to stop a war from breaking out. north and south korea have been holding talks at the truce village along the demilitarized zone. let's go to south korea and cnn's kyung lah. as the talks continue, south korea officials are saying the north is ramping up the military. what more can you tell us? >> reporter: the defense ministry is detecting from the north while all of the peace talks are happening to cool things down on the peninsula, what the south is seeing is a doubling of the artillery on the northern front. they are seeing the north move troops in. doubling that. the submarines, 70% of north