Days after Putin declared the Ukrainian city of Lyman was Russia's forever, it has been retaken by Ukrainian forces.
Capturing the city in the Donetsk region is Kyiv's most significant battlefield gain in weeks, and could provide a staging post for further success in the east.
Donetsk is one of four regions annexed by Russia following spurious "referendums".
Ukraine correspondent for the BBC James Waterhouse spoke to Corin Dann.
