The move is seen as a concession to the North, which denounces the drills as an invasion rehearsal against the regime.

The allies agreed earlier to make a final determination on next year's major exercises before Dec. 1.

"No final decisions have been made," Lt. Col. Chris Logan, a Pentagon spokesman, told Yonhap. "We will continue to collaborate with our ROK (Republic of Korea) allies to ensure combat readiness while at the same time supporting the diplomatic process."

Trump said last weekend that he expects to have a second summit with Kim in January or February.

Meanwhile, negotiations between Washington and Pyongyang have made little headway since the first summit in June. The US wants North Korea to take further steps to dismantle its nuclear weapons and ballistic missile programs, while the North has called for sanctions relief.

US Defense Secretary Jim Mattis said Saturday that the removal of North Korea's nuclear weapons is "clearly in the diplomat's hands."

"We have been able to actually reduce some of our exercises as a sincere measure, to say we want the diplomat to succeed," he said at a defense forum in California. (Yonhap)