Which events occurred in 1943 and helped to make the Allied victory possible?

In 1943, several key events occurred that helped pave the way for the eventual Allied victory in World War II. The Battle of Stalingrad, which lasted from August 1942 to February 1943, marked a turning point on the Eastern Front and severely weakened the German army. The Allied invasion of Sicily in July 1943 opened up a new front in Europe and put pressure on the Axis powers. Additionally, the Tehran Conference in November 1943 solidified the cooperation and strategy among the Allied leaders, strengthening their unity in the war effort.