Zinaida Maltseva, 73, right, and Galina Tereshchenko, 67, Ukrainian prisoners of war, released after a prisoner exchange upon their arrival at Boryspil airport, outside Kyiv, Ukraine, Sunday, Dec. 29, 2019. Ukrainian forces and Russia-backed rebels in eastern Ukraine have exchanged 200 prisoners in a move aimed at ending their five-year war. The swap is part of an agreement brokered this month at a summit of the leaders of Ukraine, Russia, Germany and France. (AP Photo/Zoya Shu)