Key Facts
- Campaign start
- 28 July 1914 (declaration of war)
- Austro-Hungarian casualties
- 28,000 dead; 122,000 wounded
- Serbian casualties
- 22,000 dead; 91,000 wounded; 19,000 captured/missing
- Invasions launched
- 3 (August, September, October–December 1914)
- Belgrade captured
- 2 December 1914, then retaken by Serbia
Strategic Narrative Overview
Serbia's army, under General Radomir Putnik, exploited rugged terrain to defeat the 5th Army at the Battle of Cer, expelling all Austro-Hungarian forces. A second invasion in September was repulsed at the Battle of the Drina. A third offensive in October penetrated deep into Serbia and captured Belgrade on 2 December, but a Serbian counter-offensive at the Battle of Kolubara forced another Austro-Hungarian withdrawal before year's end.
01 / The Origins
On 28 July 1914, Austria-Hungary declared war on Serbia following the assassination of Archduke Franz Ferdinand, triggering the opening military operations of World War I. Vienna sought a swift punitive campaign to crush Serbia before other powers could intervene. General Oskar Potiorek commanded the Austro-Hungarian Balkanstreitkräfte, comprising the 5th and 6th Armies, which attacked from the west and north in August 1914.
03 / The Outcome
By late December 1914, Serbia had expelled Austro-Hungarian forces for the third time, ending the campaign without a single Habsburg objective achieved. Potiorek was relieved of command. Combined casualties exceeded 280,000 on both sides. The campaign's failure compelled Austria-Hungary to seek German and Bulgarian reinforcements, leading to a far larger coordinated offensive against Serbia in 1915.
Belligerents & Mobilization Analysis
Side A
1 belligerent
Oskar Potiorek.
Side B
1 belligerent
Radomir Putnik.
Kinetic Engagement Axis
Scroll horizontally to view full axis. Events plotted relatively.