Romanian Campaign (1917)

Romanian Campaign (1917)
Part of the Romanian Campaign of World War I
Romanian troops at Mărășești
Date 22 July–3 September 1917 Location Moldavia, Romania Result Russo-Romanian victory Romania makes a net territorial gain of around 200 square kilometres (77 square miles) August von Mackensen's invasion of Moldavia fails
Belligerents
Romania  Russia	Germany  Austria-Hungary
Commanders and leaders
High Command: Constantin Prezan Ion Antonescu 2nd Army: Alexandru Averescu 1st Army: Constantin Cristescu (until 12 August) Eremia Grigorescu (after 12 August)	August von Mackensen Friedrich von Gerok
Units involved
Romania: 1st Army 2nd Army Russia: 4th Army 9th Army	9th Army Gerok Group
Strength
Battle of Mărăști (Romanian): 56 battalions 14 squadrons 228 artillery pieces (52 heavy) 21 aircraft Battle of Mărăști (Russian): 3 divisions Battle of Mărășești (Romanian): 78 battalions 58 squadrons 150 batteries (36 heavy) 10 trench mortars 7 anti-aircraft guns 5 air squadrons Battle of Mărășești (Russian): 84 battalions 32 squadrons 79 batteries (9 heavy)	Battle of Mărăști: 21 battalions 36 squadrons 142 artillery pieces (6 heavy) Battle of Mărășești: 102 battalions 10 squadrons 213 batteries (31 heavy)
Casualties and losses
Romanian losses at Mărășești: 27,000	German losses at Mărășești: 60,000

The 1917 Romanian Campaign consisted in three battles between late July and early September 1917, fought between Germany and Austria-Hungary on one side versus Romania and Russia on the other. Romania emerged from this campaign with a slight net territorial gain and won its most important battle during the First World War.

The campaign was one of several attacks along the Eastern Front that was launched in support of the Kerensky offensive in Galicia.