Seoul and Washington begun another round of defense cost sharing negotiations.<br />The first of the two day event lasted about four hours.<br />The session was led by the nation's top negotiator Jeong Eun-bo... and his American counterpart James DeHart.<br />According to the foreign ministry the duo shared their basic stance.<br />Washington is reportedly calling on Seoul to pay five billion U.S. dollars more than five times the amount initially agreed under the current deal that expires this year.<br />South Korea repeatedly emphasized, the figure has to be fair and acceptable to both sides.<br />Talks will continue on Tuesday.<br />