Battle of Kursk
After the defeat at Stalingrad (https://goo.gl/RvGTL8) and the loss of the 6th army, German Wehrmacht needed a decisive victory to get the initiative back and turn the tide of the World War II. The concentration of the Soviet troops around the Kursk salient offered that opportunity and Hitler ordered the operation Citadel with a goal of cutting the salient and surrounding the Red Army forces defending it. This would be one of the last German offensives on the Eastern Front and would culminate at the arguably biggest tank battle in history – Prokhorovka and Soviet counter-attacks during the operations Rumyantsev and Kutuzov.
Credit: Kings and Generals