It’s now nearly two years since Russia began its full scale invasion of Ukraine. Hopes that Ukraine might seize back its territory have been dashed, in a conflict that’s become deadlocked. At first it felt clear – the invasion is wrong, Putin must fail and be seen to fail, Ukraine’s defiance and bravery must be supported with everything its allies can provide. But as the death, destruction and bloodshed continues, with little sign of progress on either side, questions have been raised about how the war might ever be brought to an end.

How realistic is it for Ukraine to aspire to recapture all of its land, even Crimea? This year’s US presidential election has sharpened the focus: A Trump victory could threaten Ukraine’s future supply of arms. Some believe Russia would settle for the land it has already captured. If so, for Ukraine the bitter pill of ceding some 20% of its territory would at least bring the war to an end. But what’s the moral case for this? What’s the real value of peace – bought at the cost of justice? If western powers are seen to allow aggression to win the day in Ukraine, what message would that send to Vladimir Putin and other tyrants around the world? In Ukraine, what’s the moral case for ceding land for peace?

Presenter: Michael Buerk Producer: Jonathan Hallewell Assistant Producer: Linda Walker Editor: Tim Pemberton