The “Mein Costs” caption on this cartoon is a play-on-words reference to Hitler’s signature work, Mein Kampf (English translation: my struggle or my fight). The cartoon recognizes the enormous expenditure of German soldiers taking place during the summer of 1942 as the Nazi military rampaged across Russia. German and Romanian troops captured Sevastopol, Russia in early July 1942, captured critical Soviet oil fields in the Caucasus by July 9, and began their drive toward Stalingrad, which would culminate in the Battle of Stalingrad beginning in September.
German troop losses ran into the hundreds of thousands, but as horrendous as those losses were, Russian losses were far worse and ran into the millions. All told, the Eastern Front conflict between Germany and Russia was by far the largest and bloodiest theatre of World War II. It is generally accepted as being the most costly conflict in human history with over 30 million dead as a result.