Sventiany Offensive

The Sventiany Offensive was a military operation mostly undertaken by the 10th German Army against the 10th Russian Army as part of the Eastern Front during World War I. On September 9, 1915, four German cavalry divisions, enforced from September 13 by two others, filled the gap in the Russian front and deployed an attack to gain the rear of 10th Russian army.

On September 9 the Germans broke the Russian defence and six cavalry divisions were thrown into breach. Later the German onslaught, devoid of infantry and artillery support, weakened and on September 15–16 was finally stopped by the newly formed 2nd Russian army. On October 2 the Sventiany breach was eliminated.