In the summer of 1940, Great Britain is under attack in the air and at sea. German U-Boat wolf packs prowl the Atlantic and sink over a million tons of shipping. German skippers call this the “happy time” — but was the German Navy actually that successful early in the Battle of the Atlantic?

The Russian Federation is at war with Ukraine, and some of its supporters insist it will win because Russia doesn’t lose wars. They point to its vast territory, its cold climate, its manpower reserves, or its people’s ability to endure hardship and accept death – and they point to great Russian victories of the past. So let’s put this claim to the test and see what history has to say about Russia’s record on the battlefield.