Austro-Hungary begins its offensive south, hoping to take down Serbia as soon as possible.
Front - Balkans
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1914
28 July1914
4 December
First Serbian Campaign
Military action -
1915
23 May
Italy joins the war
Political eventKingdom of Italy decides to join Entente... after long deliberations.[/justify[1915
5 October
Bulgaria joins the war
Political eventBulgaria - under its almost insanely ambitious monarch - joins the war. Serbia is defeated.1916
5 January1916
20 March
Second Serbian Campaign
Military actionFollowing the collapse of Serbia, Austro-Hungarian Empire (mostly without German help) concludes the fighting on the Balkan Peninsula... for now.1916
27 August
Kingdom of Romania joins the war.
Political eventKingdom of Romania - that, until one, was rather... reserved in its policy towards the war - finally joins the Entente.1916
28 August1916
January
Romanian Campaign
Military actionA Romanian offensive into the Austro-Hungarian Empire ends in one of the greatest disasters in contemporary military history.1917
2 June
Greece joins Entente
Political eventFollowing years long National Schism and almost terroristic actions of Entente, Greece finally joins the war.1918
15 June1918
28 October
Second Battle of the Marne
Military actionThe Kaiserslacht offensive once again reaches the Marne river. The results are catastrophic... and change the world forever.1918
28 October1920
11 March
Sitzkrieg
Military actionA temporary period of unofficial armistice, as all sides of the Great War prepare for final confrontation... while desperately trying to reorganize themselves internally to avoid collapsing.Additional timelines