Map showing the territorial gains (darker shades) of Romania, Bulgaria, Serbia, Montenegro, and Greece, primarily at the expense of Turkey, agreed in the Treaty of Bucharest following the Second Balkan War. Despite its gains, Bulgaria also lost territory to both Romania and Turkey.
The Balkan States According to the Treaty of Bucharest; Acquisitions of New Territory shown by darker shades
"Two days after the German 9th Army attacked at Mărăşeşti, the left wing of Group Gerok launched its Oituz offensive eastward toward the Trotuş valley. The immediate objective was to outflank and pinch off Averescu's intrusion into the Soveja basin. The Austro-Hungarian command also hoped Gerok's forces could continue across the Trotuş river. Then, under pressure from the 9th Army and the Austrian 7th Army attacking out of Bukovina, the Romanian army would be crushed and all Moldavia occupied. Otherwise, Archduke Josef argued, 'Romania will revive and cause us much trouble.'"
Romania's Mărăşti offensive, supported by Russian troops, began on July 24, 1917 with an attack in Moldavia, the only part of the country not occupied by Central Power forces. The Romanians suspended the battle on August 1. German commander August von Mackensen responded with a German-Austro-Hungarian campaign, the Battle of Mărăşeşti, began on August 6. The attack described above, the Battle of Oituz, began on August 8 north of the fighting at Mărăşeşti. General Alexandru Averescu commanded the Romanian 2nd Army in the battle, Archduke Josef the Austro-Hungarian troops.
The Romanian Battlefront in World War I by Glenn E. Torrey, page 237, copyright © 2011 by the University Press of Kansas, publisher: University Press of Kansas, publication date: 2011
1917-08-08, 1917, August, Romania, Oituz, Battle of Oituz, Moldavia, Bukovina