"The final element in the DPRK plan is an extensive deep battle across the entire South Korean depth using some one hundred thousand special operations forces (SOF). An interesting feature of this war is that since both sides look and speak more or less alike, covert insertion and operation is easier for each side—but especially so for North Korean agents who may move freely within South Korea’s open society. ... As with artillery strikes, fighting by SOF on objectives in Seoul will be aimed at heightening panic and demoralizing political leadership, and will be exploited by DPRK information warfare agencies to give the impression that the front has already reached the ROK capital."

This is an interesting point: every major terrorist attack of the Twitter age sees wild rumors flying. An actual DPRK invasion combined with cyberwarfare could yield a campaign of information warfare like nothing we've seen before.