jong-un if war to break out between the two countries. cnn s brian todd joins us with more. south korea apparently has been practicing for this? reporter: that s right. practicing, drawing up plans. tonight the south koreans are accelerating those plans. tensions are so high on the korean peninsula tonight that both nations now have plans in place to kill each other s leaders if war breaks out. kim jong-un tonight is dealing with a direct potential threat to his own life, a special south korean military brigade whose mission is to kill him. a south korean defense ministry official tells cnn his country is speeding up plans to create what some call a decapitation unit. the official says the team would be activated only if war breaks out and would target north korea s war-time command led by kim. it s hard for me to imagine a commando raid given the enormous killing power and density of the north korean people s army. likely what we saw in the iraq war against saddam s immediate