The Battle of Gross-Jägersdorf occurred during the Seven Years' War, a conflict involving multiple European powers vying for global dominance. On August 30, 1757, the Russian army, under the command of Field Marshal Stepan Fyodorovich Apraksin, confronted a smaller Prussian force led by Field Marshal Hans von Lehwaldt. The battle unfolded near the village of Gross-Jägersdorf, located in East Prussia, and was marked by a combination of infantry maneuvers and artillery engagements among a backdrop of rapidly changing tactical situations.

As the battle commenced, Apraksin sought to exploit the numerical advantage of his troops, estimated to be over 40,000 compared to Lehwaldt's 21,000. The Prussian forces initially employed effective defensive tactics, but the Russian military's superior numbers and coordinated assaults gradually overwhelmed them. Intense fighting lasted throughout the day, with significant casualties reported on both sides.

This victory for the Russians was essential not only in terms of morale but also in terms of solidifying their presence in Eastern Europe during the war. It demonstrated the effectiveness of the restructured Russian army, highlighting leadership under Apraksin. The battle's outcome would influence subsequent military engagements and the broader strategies employed in the Seven Years' War, underlining the shifting balance of power in Europe.