The U.S. might be willing to show some flexibility to North Korea in some areas,.. but when it comes to some things... the policy remains firm and unwavering.<br />Downplaying speculation to the contrary,... U.S. Defense Secretary James Mattis has reaffirmed that American soldiers will remain deployed in South Korea.<br /> Speaking to reporters on a flight back to the U.S. from a security conference in Singapore,... Mattis flatly ruled out the possibility of withdrawing any of the 28-thousand U.S. troops stationed in the South.<br />Just the day before Mattis said the issue won't be on the negotiating table at the June 12th Singapore summit.<br />Mattis added that North Korea was the topic of almost all his conversations during his meeting in Singapore. <br />