On 11 March, the operations between the two lakes began with an intense bombardment and an attack by the 76th French Division against the Crvena Stena west of Monastir, where they captured some strong entrenchments around the villages of Dihovo, Tirnova (Tirnovo) and Snegovo.

But resistance from Central Powers forces proved more vigorous than expected, which, combined with the terrible weather, caused the attack to fail.

On the 18th, after four days of intense engagements, the French captured the whole of Hill 1248 as well as the fortified village of Krklino (also named Krklina, Kir-Klina, Kerklino, Kerklina, etc.

But the Central Powers succeeded, by a counter-attack, in recapturing part of Hill 1248, whose summit remained abandoned by both sides.

Monastir was somewhat relieved, but the town remained under fire until the Armistice, when more than half of it had been destroyed by the 20,700 shells dropped on it.