North Korean leader Kim Jong Un underscored the need to drastically improve his nation's ties with the outside world as he addressed a major political conference for the third consecutive day. State media said Kim also reviewed relations with rival South Korea but didn't elaborate on what steps he said he wanted to take. Observers had expected Kim to use the first congress of the ruling Workers' Party in five years to send conciliatory gestures toward Seoul and Washington. In his opening-day speech, Kim admitted his previous economic developmental plans had failed and vowed to lay out a new five-year development plan. On the second day of the meeting, he said he would bolster his country's military capability.