The war in Ukraine will reach a grim anniversary on 24 August, when we will be six months into a conflict whose terminus we still cannot see.

Can history offer any clues? Vladimir Putin likes to talk about the second world war, Russia’s best war, but the closest parallel is probably the Crimean war, which dragged on for two and a half years, from 1853 to 1856, before the exhausted belligerents worked out a peace agreement.

An underachieving Russian military failed to achieve any of its goals. But the British and French, who forged an alliance with the Turks, encountered frustrations of their own as they groped toward a victory that felt pyrrhic at times. Surprisingly, one of the war’s great legacies was felt in the US, where an unexpected chain of events, tied to Russia’s defeat, helped to end slavery.

Can any lessons be drawn from the Crimean war today?

Guardian football writer Nick Ames reports on FC Kryvbas, a Ukrainian football club refusing to leave their city despite the threat of attack from Russia.

FC Kryvbas will not relocate to Kyiv, as others have done, even if areas on the city’s periphery are frequently being shelled and the troubling spectre of the Enerhodar nuclear power station looms 60 miles to the south-east.

The city is protected by four lines of defence and cannot be entered without passing a series of army checkpoints.

In June, the club told its rivals to forget any idea of playing league games abroad, saying there is “no other option, neither from a moral point of view nor from sporting principle” than to compete domestically.

The same month, Vernydub became manager. “It has to happen here, in our land,” he says. “It’s very important to our soldiers, our warriors, that we do it.”