By Ben Aris in Berlin Russia will insist on its own “ironclad” security guarantees as part of any ceasefire deal to end the conflict in Ukraine, Russian Deputy Foreign Minister Alexander Grushko said in remarks published on March 17.

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.