Siege of Dubica

In the Siege of Dubica, a Habsburg Austrian army led by Prince Liechtenstein besieged an Ottoman Turkish garrison in the fortress of Dubica in April 1788. The siege ended in failure.

Background
After the Austrian declaration of war on the Ottomans on February 9, 1788, the Imperials expected great success on the Bosnian front, during which hostilities began. The Imperials expected no resistance and promised the Christian inhabitants a liberation from Ottoman rule. However, the Imperials suffered setbacks. On the same day of the declaration of war, the Imperials, led by Colonel Knesevich, attacked Dubica but were repelled. A bombardment on Novi Sad from February 10 to March 21 ended in failure as well. Soon, things returned to peace for two months, until they were interrupted by raids.

Siege
The Imperial Army of the Croatian Corps began operations in April. The Imperials were led by Prince Liechtenstein and had an army of 10,000 men. On the nights of 19 to 20, they crossed the Una River into two columns and arrived in Dubica. On April 22, the Imperials began bombarding the fort using mortar batteries, and they made a breach in the walls.

On April 25, the Imperials launched an assault on Dubica. After a battle for six hours, the Ottomans managed to repel the assault,   but at the same time, an Ottoman army of 8,000 men appeared behind the besiegers and attacked them. The Imperials managed to repel them but lost 550 men during the combat.

The Imperials neglected to surround the fortress. A Sipahi detachment was sent to destroy an Austrian bridge. Learning of this, the Imperials dispatched Graeven hussars to prevent them; however, the Ottomans defeated the hussars and forced them to retreat. After a report of the approach of a 10,000-strong Ottoman army was received, on April 26, Prince Liechtenstein abandoned the siege and retreated behind the Una River again.

Aftermath
After the defeat at Dubica, the Imperial army made no further movements on the Bosnian front. Prince Liechtenstein was removed from his post in August and gave it to Ernst Gideon von Laudon.