Battle of Stalingrad strategic petroleum resources for Germany. The expansion of objectives was a significant factor in Germany's failure at Stalingrad, caused by German overconfidence and an underestimation of Soviet reserves. The Soviets realized that they were under tremendous constraints of time and resources and ordered that anyone strong enough to hold a rifle be sent to fight. Army Group South was selected for a sprint forward through the southern Russian steppes into the Caucasus to capture the vital Soviet oil fields there. The planned summer offensive, code-named "Fall Blau" (Case Blue), was to include the German 6th, 17th, 4th Panzer and 1st
Timeline of the annexation of Crimea by the Russian Federation accused of treason and a fight ensued over the flagpole. More protesters rallied outside the Sevastopol administration offices. Pro-Russian demonstrators accompanied by neo-Cossacks demanded the selection of a Russian citizen as mayor (which was refused by the city council) and planted Russian flags at city hall; they also handed out leaflets calling for volunteers to a militia and warning that the "Blue-Brown Europlague is knocking." On 24 February, a pro-Russian rally in Sevastopol chose Aleksei Chalyi, a Russian citizen, as mayor. This was controversial because Sevastopol has no mayor as the Chairman of the Sevastopol City State Administration (Governor of