How two Colombians wound up in a Russian prison after fighting in Ukraine

The last time Otilia Ante, 78, heard from her son Alexander he was telling her to put aside some of the hearty meat and corn stew on which he was raised in western Colombia. Alexander, a former soldier, was in neighbouring Venezuela at the time, on his way home from Ukraine where he had fought invading Russian forces alongside the Ukrainian army. But he is one of many Colombian soldiers who never made it home.