The Battle of Sutjeska was a significant military engagement during World War II, fought from May 15 to June 15, 1943, in the Sutjeska Valley of present-day Bosnia and Herzegovina. It involved the Yugoslav Partisans, led by Josip Broz Tito, who were fighting against Axis forces, primarily composed of German and Italian troops. The battle was part of a larger campaign to suppress the Partisan movement in Yugoslavia. Despite being heavily outnumbered, the Partisans managed to evade encirclement and inflicted considerable casualties on the Axis forces. The battle showcased the resilience and tactical skill of the Partisans, ultimately allowing them to regroup and continue their fight against occupation. The outcome of the battle significantly boosted the morale of the Partisan forces and solidified their position in the region.