Blinken concerned by growing Russia-North Korea military ties

Blinken's brief stop in Seoul demonstrates U.S. commitment to the Korean peninsula and regional issues, and that the allies are implementing agreements made in earlier presidential summits, despite the pressing conflicts elsewhere, said Duyeon Kim, an analyst with the Center for a New American Security.

"Still, it will be important for the U.S. to sustain attention at all levels of the government because North Korea and even China would think is now has more room to manoeuvre," she said.

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