President Vladimir Putin told Russians they are “invincible” when they stand together as the country on Saturday marked the 75th anniversary of the end of World War II in lockdown from the coronavirus. With cases surging and authorities urging Russians to stay in their homes, celebrations of this year’s Victory Day were muted after the Kremlin grudgingly postponed plans for a grand parade with world leaders. Instead of columns of military hardware and thousands of troops marching through Red Square as planned, Putin walked alone to lay flowers at the Eternal Flame outside the red brick walls of the Kremlin.