The Russian president agrees fighting must end, but calls for the removal of the "root causes" of the war he launched.

As U.S. President Donald Trump continues to push for a swift end to the war in Ukraine, fears are mounting that Kyiv could be forced to accept a peace deal on unfavorable terms, and that will leave it vulnerable to future Russian attacks.

The last time Ukraine signed a peace accord with Russia, 10 years ago, it brought only sporadic violence, mounting distrust, and eventually full-scale war. Here’s what we can learn from that history.