How did the Soviets win at Stalingrad help advance the Allies Europe First strategy?

The Soviet victory at Stalingrad in early 1943 marked a significant turning point in World War II, as it halted the German advance into the Soviet Union and began a series of Soviet offensives that would push the Germans westward. This defeat weakened German forces, enabling the Allies to focus their efforts in Western Europe without the immediate threat of a successful Eastern Front. By stabilizing the Eastern Front, the Soviets effectively allowed the Allies to pursue their Europe First strategy, prioritizing the defeat of Nazi Germany before addressing other theaters of war. This coordination between the Allies and the Soviets ultimately contributed to the downfall of the Axis powers in Europe.