President Trump has had more Chinese cooperation on North Korea sanctions than any of his predecessors, but Washington still needs to clearly explain to Beijing why it would be in China’s strategic interests to do significantly more, a Chinese foreign policy expert told NK News on Saturday.

In an interview with NK News at the Halifax International Security Forum, the Stimson Center’s Senior Associate Yun Sun said that although Chinese pressure had not prevented North Korean provocations in 2017, there is currently a notable level of cooperation between the U.S. and Beijing.

“I think in terms of the level,