U.S. has been conducting back-channel talks with North Korea for months

U.S. has been conducting back-channel talks with North Korea for months

According to the White House, Trump and Xi affirmed that the recent adoption of a new UN Security Council resolution regarding North Korea was an important and necessary step toward achieving peace and stability on the Korean Peninsula.

The ongoing talks have included discussions about U.S.

There is no military solution to the North Korea nuclear issue.

The case of American student Otto Warmbier, who died following his release from North Korea, was included in those talks. North Korea dominated the conversation between the two leaders, according to a readout of the call.

A number of Trump administration officials, including the president himself, have publicly commented on the recent threats made by North Korea, including a proposed strike on the waters off Guam, a USA territory in the western Pacific.

And that doesn't mean talk hasn't been tough - the USA has been speaking forcefully to North Korea all this time, said Ellen Tauscher, former US under secretary of state for arms control and global security under President Barack Obama.

"Force has always been an option, but it has always been the last option, not the first", Soderberg said.

On Thursday, Defense Secretary James Mattis said the military is ready to counter the threat from North Korea, but also said the effort is being "diplomatically led". The tragedy of war is well known.

Trump in April made similar comments about US relations with North Korea, and claimed that he hoped "things work out well" with North Korea.