Sventiany Offensive

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Sventiany (Švenčionys) Offensive
Part of the Eastern Front during World War I
Eastern Front in the second half of 1915.
Date 26 August (N.S. 8 September)
to 19 September (N.S. 2 October), 1915
Location Sventiany, Russian Empire (Now Švenčionys, Lithuania)
55°09′N 26°10′E / 55.150°N 26.167°E / 55.150; 26.167Coordinates: 55°09′N 26°10′E / 55.150°N 26.167°E / 55.150; 26.167
Result Russian victory
 German Empire  Russian Empire
Commanders and leaders
German Empire Hermann v. Eichhorn Russian Empire Alexei Evert
Russian Empire Yevgeniy Radkevich
Russian Empire Pavel Plehve
Units involved
German 10th Army Russian 10th Army
Russian 5th Army
Unknown Unknown
Casualties and losses
Unknown Unknown

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

On 9 September 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 15–16 September was finally stopped by the newly formed 2nd Russian army. On 2 October the Sventiany breach was eliminated.


  • Yevseyev, I. Sventyanski proryv, Moscow, 1936.