 For this operation, he planned to attack along the valley of the Olt using the XXXIX Reserve Corps and the I Reserve Corps (German 89th Infantry Division and Austro-Hungarian 71st Infantry Division), supported by cavalry.The Second Romanian Army, under General Grigore C. Crăiniceanu, had its forces halved in mid-September, when three of its divisions were shifted South.The I Reserve Corps was part of the Austro-Hungarian 1st Army at the time of the battle.