A large convoy of cars and vans carrying refugees from the ruins of Mariupol arrived in the Ukrainian-controlled city of Zaporizhzhia on Saturday after waiting days for Russian troops to allow them to leave. Mariupol, now mostly Russian-controlled, has been flattened during the 80-day-old war. Ukraine has gradually been evacuating civilians from the devastated city for more than two months. Refugees first had to get out of Mariupol and then somehow make their way to Berdyansk – some 80 km further west along the coast – and other settlements before the 200 km drive northwest to Zaporizhzhia. Ni…