A solitary, symbolic tank has featured in Russia’s annual 9 May military parade for the second year in a row as the country was forced to pare down its normal display of military might during a full-scale war in which it has suffered unprecedented losses over the last two years. The single tank to roll across Red Square as Vladimir Putin reviewed about 9,000 troops was a second world war-era T-34 carrying the banner that the Soviet Union used when it defeated Nazi Germany alongside other allies. The tank has gained iconic status, but is not in combat use and...