Cruciada împotriva comunismului was named in reference to which Axis invasion of the Soviet Union?
Operation Barbarossa Operation Barbarossa (German: "Unternehmen Barbarossa") was the code name for the Axis invasion of the Soviet Union, starting Sunday, 22 June 1941, during World War II.
Second Battle of Kharkov The Second Battle of Kharkov or Operation Fredericus was an Axis counter-offensive in the region around Kharkov (now "Kharkiv") against the Red Army Izium bridgehead offensive conducted 12–28 May 1942, on the Eastern Front during World War II. Its objective was to eliminate the Izium bridgehead over Seversky Donets or the "Barvenkovo bulge" (Russian: Барвенковский выступ ) which was one of the Soviet offensive's staging areas. After a winter counter-offensive that drove German troops away from Moscow and also depleted the Red Army's reserves, the Kharkov offensive was a new Soviet attempt to expand upon their strategic initiative, although it failed to secure a significant element of surprise.