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.

Reports suggested that Russian forces had recaptured Sudzha in Kursk, the largest town seized by Ukrainian forces during their unexpected cross-border incursion last year. Oleksandr Syrskyi, the chief of the Ukrainian military, said on Thursday Russia had carried out multiple airstrikes on Kursk, almost destroying Sudzha.