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
"On the night of 10–11 September [1917], several parties of engineers from the 1st ID were sent out with wire cutters. They succeeded in opening only one hole of about 20 meters. When the infantry attacked the next morning, the first wave was able to penetrate the gap. But then the men encountered additional barriers and enemy machine guns. Virtually all were either killed or wounded. . . . The final attempt to take Cireşoaia was a needless and costly failure. Casualties for the Romanians in two days exceeded 1,200 killed, wounded, or missing."
A Romanian offensive, the Battle of Cireşoaia on September 9, 10, and 11, 1917 was an attempt to take advantage of the transfer of German and Austro-Hungarian troops from the Romanian front in Moldavia in a sector that had seen the Austro-German offensive at Oituz in early August. It would be the last Romanian offensive for more than a year.
The Romanian Battlefront in World War I by Glenn E. Torrey, pp. 252–253, copyright © 2011 by the University Press of Kansas, publisher: University Press of Kansas, publication date: 2011
1917-09-10, 1917, September, Romania, Battle of Cireşoaia, Cireşoaia, Battle of Ciresoaia, Ciresoaia