U.S. Defense Secretary Jim Mattis testifies before a Senate Armed Services Committee hearing on the “Defense Department budget posture in review of the Defense Authorization Request for FY2019 and the Future Years Defense Program” on Capitol Hill in Washington, U.S., April 26, 2018. REUTERS/Aaron P. Bernstein

WASHINGTON (Reuters) - U.S. Defense Secretary Jim Mattis on Friday deferred questions about the future U.S. military presence on the Korean peninsula to diplomats, whom he said would deal with that and other issues should there be a peace agreement with North Korea.

“So I think for right now we just have to go along with the process, have the negotiations and not try to make preconditions or presumptions about how it is going to go. The diplomats are going to have to go to work now,” Mattis told reporters.