KIEV, Ukraine — Thousands of aging Red Army veterans and their supporters clashed Saturday in downtown Kiev with partisans who fought the Soviets and Nazis during World War II and now want pensions and official recognition as veterans. Hundreds of nationalists from western Ukraine gathered in the capital to demand formal recognition for the partisans, a move that would also entitle them to social and financial benefits. "They died for Ukraine, and we must recognize it and honor them as heroes," said protester Vasil Kokoyda, 55. Thousands of Red Army veterans and their supporters, waving red flags and chanting "Get...