this one, codenamed max thunder - took place in november at the kunsan air force base 150 miles south of seoul... >> this type of exercise takes place every year but for the north korean government they consider this a provocation and a threat. >> north korea is still a flash point. we're still at a state of war with north korea. this is 1953 armistice. >> if there was someday heaven forbid a real war here we would need to work very closely. we are always practicing together always working together >> thankfully we have helped stabilize and ensure the security of the peninsula for the last 61 years, but in spite of that long time we have to be ready to fight tonight and that really is our mantra. >> north korea is under new leadership. >> kim jong-un looks funny he is overweight and sometimes does strange things. but he is smart. when his father died 7 top officials, 4 generals and 3 civilian bureaucrats, walked next to the coffin of his father in december 2011. in two years time, none of them was alive and in a high level position. >> when it comes to international relations, kim jon