Battle of the Crna Bend (1917)

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Battle of the Crna Bend (1917) — short version

What and when
- A World War I battle fought from May 5 to May 9, 1917.
- Part of the Allied Spring Offensive on the Macedonian Front.
- Location: the Crna Bend (Crna River loop) in what is now North Macedonia.

Who fought
- Central Powers: Bulgaria and Germany defended a strong, fortified line.
- Allies: Italy, France, Russia, and other Allied troops attacked.

Why it mattered
- The Allies hoped a successful breakthrough would collapse Bulgarian and German defense and help end the war on the Macedonian Front. The defenders aimed to hold their positions and protect important supply routes.

Key forces and fortifications
- The Crna Bend sector was well fortified with trenches, barbed wire, shelters, and strong artillery.
- Front length in the sector was about 23 km, with about 40 battalions, hundreds of machine guns, and numerous guns on the Central Powers side.
- The main defensive points included hills and ridges such as Hill 1020, Hill 1050, Dabica, and Gradešnica.

What happened
- The Allies opened with a four‑day artillery bombardment starting May 5. The bombardment aimed to weaken the line but did not break the defenders.
- On May 9, Italian, French, and Russian troops attacked along an 11 km front. The Italians faced strong Bulgarian and German resistance and suffered heavy losses; their assault ended mostly in failure.
- In the French sector, attacks on Hill Dalag Greben (Piton Rocheaux) and related positions failed, with heavy casualties on the French side and their flank exposed.
- The Russian-led assault on Dabica (Dabica Hill) initially saw some success, but the Russians were eventually pushed back, and Dabica was retaken by German‑Bulgarian forces by about 20:10 that day.
- By the end of May 9, the Central Powers had stabilized their front, and the Allied offensive had not achieved its objectives.

Casualties
- Central Powers: substantial but not as high as the Allies; Bulgarian and German losses were heavy in places but overall smaller than the Allied toll.
- Allies: about 5,400–5,450 casualties (killed, wounded, and missing), including significant Italian losses in the Ivrea and Sicilia brigades, as well as French and Russian casualties.
- Russian forces suffered heavy losses in the Dabica engagement and subsequent actions.

Aftermath
- The battle ended in a Central Powers victory, with the Crna Bend front holding tight for the time being.
- The Allies failed to break through and suffered heavy losses for little territorial gain.
- General Maurice Sarrail continued limited attacks in the Crna Bend (May 11 and May 17) but the offensive was ultimately called off on May 21, as other fronts also faced defeats (Monastir and Doiran).

Overall
- The Battle of the Crna Bend demonstrated the difficulty of breaking a well‑prepared, fortified line on the Macedonian Front and helped explain why the Allies, despite large forces, could not shift the strategic balance in that theater.