Last weekend, Ukrainians around the globe were overjoyed to hear the news that 35 political prisoners and hostages being held by Russia were returned to Ukraine. They were part of a major Ukrainian-Russian prisoner exchange involving 70 men, 35 from each side. Among them were those whose names had become well-known around the world – the filmmaker Oleh Sentsov, the journalist Roman Sushchenko and 19-year-old Pavlo Hryb – and the 24 servicemen taken into custody with their three naval vessels in November of last year.