Russian President Vladimir Putin used the annual display of military might on Moscow's Red Square marking victory against Nazi Germany to justify his faltering 10-week-old invasion of Ukraine, which he compared to the battle during World War II. "Today, you're defending what our fathers, grandfathers and great grandfathers fought for," Putin said in a speech before the military parade on Monday, flanked by veterans at the May 9 Victory Day celebration of the German defeat in 1945. He spoke as air-raid sirens rang out in Ukraine's capital Kyiv and Russian forces continued shelling across the front lines in the country's...