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.

Russian President Vladimir Putin said Thursday that Russia agrees in principle with the U.S. ceasefire proposal, but the terms need to be worked out.

The Kremlin has said it does not want to get ahead of itself after Ukraine announced it was ready to accept an immediate 30-day ceasefire with Russia.