The Historical Truth
The Georgian sergeant Meliton Kantaria is a hero of Georgia, not a hero of Russia.
In 2008, Meliton Kantaria's motherland Georgia was bombed by Putin's Russia.
The Union of Soviet Socialist Republics (U.S.S.R.) Consisted of 15 Soviet Socialist Republics (S.S.R.’s); Armenia, Azerbaijan, Belarus, Estonia, Georgia, Ukraine, Kazakhstan, Kyrgyzstan , Latvia, Lithuania, Moldova, Russia, Tajikistan, Turkmenistan, ,Uzbekistan. So when you said " Missing from US and UK recollections of WWII is the role of the Soviet Union in defeating the Nazis at a cost of 27 million Russian lives." Actually they are not the Russians, they are Georgians, Ukrainians, Armenians, etc. They are from 15 different countries.
So, you have to learn elementary, the basic history of world.
Simple; The USSR was not Russia. The EU isn't only France, Or NATO isn't only America. NATO's Soldiers aren't only American soldiers. It's YOU.
( Photo; The Georgian soldier, World War 2 hero Mr Meliton Kantaria, flying the union flag, over the Reichstag in Berlin,
Raising A Victory Flag Over The Reichstag, In Berlin. 1945.)