The Battle of Lerin or Battle of Florina or Chegan offensive was an offensive operation of the Bulgarian army during the First World War between 17–28 August 1916 in which they conquered the city of

Florina Florina ( el, Φλώρινα, ''Flórina''; known also by some alternative names) is a town and municipality in the mountainous northwestern Macedonia, Greece. Its motto is, 'Where Greece begins'. The town of Florina is the capital of the F ...

(in present-day Greece but in Bulgaria known as ''Lerin''), but failed to take Chegan.

Background

In August 1916,

Romania Romania ( ; ro, România ) is a country located at the crossroads of Central, Eastern, and Southeastern Europe. It borders Bulgaria to the south, Ukraine to the north, Hungary to the west, Serbia to the southwest, Moldova to the east, and ...

chose to join the war effort on the side of the Entente. The Allies planned a large offensive in the Macedonian front for the middle of August to support Romania's entry into the war and pin down as many Bulgarian forces as possible. The Bulgarian high command suspected an impending offensive, and the fighting around Doiran that erupted on 9 August only confirmed these suspicions. On their part, the Bulgarians had urged for an offensive in Macedonia since the beginning of the year, now planning a strike with the First Army and Second Army on both Allied flanks. The

Struma operation The Struma operation was the occupation of a part of northeastern mainland Greece by the Bulgarian army, during the First World War between 17–23 August 1916. It was named after the Struma (Strymonas) river. Background In August 1916 Romania ...

on the eastern flank by the Bulgarian Second Army under general Todorov was a huge success, mainly because the Greek government ordered their troops not to resist.

Chegan operation

The advance on the right flank was to be undertaken by the Bulgarian First Army, which had the following order of battle in July 1916: The Germans finally agreed that an offensive was needed, and on 12 August general Boyadzhiev received his orders from the headquarters of Army Group "Mackensen". The right wing of the army, consisting of the reinforced 8th infantry division (four and a half infantry brigades,) was to advance and take Lerin while parts of the 3rd division towards the Chegan mountain range and the village of the same name (today known as Agios Athanasios, to the north-west of

Lake Vegoritida Lake Vegoritida ( el, Λίμνη Βεγορίτιδα, ''Limni Vegoritida''), also known in the past as Lake Ostrovo ( el, Λίμνη Οστρόβου, ''Limni Ostrovou''), is a large natural lake in western Macedonia, northern Greece. It is situa ...

, in the Greek regional unit of Pella). General Boyadzhiev agreed to attack but had concerns regarding the final results of the offensive because his army was scattered on a front and lacked enough mountain and heavy artillery. The six infantry and one cavalry divisions of the three Serbian armies faced the Bulgarians. The offensive began on 17 August 1916, with the Bulgarians taking Lerin and

Banitsa Banitsa ( bg, баница, , also transliterated as banica and banitza) is a traditional pastry dish made in Bulgaria, North Macedonia and Southeastern Serbia (where it may also be referred to as gibanica), prepared by layering a mixture of wh ...

. However, the advance soon encountered difficulties, slowing down considerably due to the increased Serbian resistance. The fighting was especially heavy on the bare rocky slopes of Chegan Mountain and the Voras Mountains. The Serbians were reinforced with new artillery constantly and fresh troops thanks to the railway that reached the battlefield, while the Bulgarians soon began depleting their ammunition stocks. This and the slow advance forced the Bulgarian high command to call off all attacks on 27 August and order the forces to dig in on the occupied positions between

, Lake Petron and along the ridges of the Voras Mountains. For the next several days, the Bulgarian positions were subjected to heavy artillery fire and a few Serbian attacks that were repulsed.

Consequences

The ''Chegan Offensive'' also known as the ''Lerin Offensive'' had failed. It failed to influence

, which entered the war on the side of the Allies but also failed to achieve its final military objective to take the Chegan village and the pass north of Lake Ostrovo. French General

Maurice Sarrail Maurice Paul Emmanuel Sarrail (6 April 1856 – 23 March 1929) was a French general of the First World War. Sarrail's openly socialist political connections made him a rarity amongst the Catholics, conservatives and monarchists who dominated th ...

now prepared a counterattack against the First Bulgarian Army that would eventually develop in the

Monastir Offensive Monastir offensive was an Allied military operation against the forces of the Central Powers during World War I, intended to break the deadlock on the Macedonian front by forcing the capitulation of Bulgaria and relieving the pressure on Romania ...

. The French retook Lerin/Florina on 23 September 1916.

References

* These units were termed "Army." They were, in fact, corps-sized formations.

Background

Chegan operation

Consequences

References

See also