In April 2007, the former Soviet republic of Estonia decided to relocate a monument of gratitude out of the centre of its capital city, Tallinn. The bronze statue depicts a pensive soldier with his head bowed, one hand holding a helmet and the other curled into a fist. For Estonia’s Russian minority, it was a symbol of the country’s liberation from fascism by the Red Army. For Estonians, it was a reminder of the country’s occupation by the Soviet Union. On 26 April, as authorities cordoned off the monument in preparation for its removal, hundreds of ethnic Russians descended on...