Katzianer's Campaign

Katzianer's Campaign
	Part of the Hundred Years' Croatian–Ottoman War
	; A map of 1537 Katzianer's Campaign.
Date	August–October 1537
Location	Slavonia
Result	Ottoman victory
Belligerents
Habsburg Monarchy Kingdom of Hungary; Kingdom of Croatia; Archduchy of Austria; Duchy of Carniola; Duchy of Styria; County of Tyrol;	Ottoman Empire
Commanders and leaders
Johann Katzianer ; Albrecht Schlick; Petar Keglević; Pavle Bakić †	Mehmed-beg Jahjapašić
Strength
24,000; 16,000 infantry ; 8,000 cavalry ; 7–8 large cannons ; 40 field cannons	8,000;
Casualties and losses
20,000 at Gorjani. Several hundred during siege.	Negligible

Katzianer's Campaign or Katzianer's War (Croatian: Katzianerova vojna) was a failed 1537 Habsburg attempt of driving the Ottomans away from the region of Slavonia in modern-day Croatia. Despite being well-resourced, Katzianer's army failed to achieve any objectives, and it was ultimately completely annihilated in the Battle of Gorjani.