John Bolton, President-elect Trump's former national security adviser, said Trump’s unwillingness to rule out military force on Greenland could bolster the positions of China’s Xi Jinping and Russia’s Vladimir Putin as they seek to justify their expansionist visions.

In an interview with CNN’s Kaitlan Collins Tuesday night, Bolton said he’s concerned that Trump’s language could “have a further ramification, based on what Trump said today about declining to rule out the use of force.”

“That's exactly the same position Xi Jinping has on Taiwan. So I could easily imagine Xi Jinping saying, ‘Look, I perfectly well understand Greenland's close to the United States. Taiwan's close to us. Trump won't rule out the use of........

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