in the late 1960s , after north korean commandoes tried to ransack the presidential palace in seoul , south korea secretly trained misfits plucked from prison or off the streets to sneak into north korea and slit the throat of its leader , kim il - sung . trump and congressional lawmakers signaled on tuesday that more steps need to be taken to rein in north korea 's rapidly developing nuclear program despite the united nations security council 's unanimous vote to pass additional sanctions on the rogue nation . following north korea ’s successful test of its sixth and most powerful nuclear bomb earlier this month , the south korean military has announced it ’s creating an assassination unit called the spartan 3000 to carry out night raids in north korea . a day after north korea conducted its sixth — and by far most powerful — nuclear test this month , the south korean defense minister , song young - moo , told lawmakers in seoul that a special forces brigade defense officials described as a “ decapitation unit ” would be established by the end of the year . trump added that the sanctions pale in comparison to " what ultimately will have to happen " to north korea . south korea is forming a hit squad to take out north korean leadership — primarily kim . state department spokeswoman heather nauert said tuesday that the un resolution represented " the strongest set of sanctions " so far , adding that " that 's significant . " now , as mr. kim ’s grandson , kim jong - un , accelerates his nuclear missile program , south korea is again targeting the north ’s leadership . the unit ” on september 4 , the men mutinied .