In the aftermath a Romanian offensive into Transylvania that was stopped mainly by the German 9th Army under the command of Erich von Falkenhayn, the Central Powers began attempting to force the mountain passes in the Carpathians.
[3] On 22 November, General Constantin Prezan and his talented operations officer, Captain Ion Antonescu, were assigned to the command of the battered 1st Romanian Army, which was tasked with defending the line of the Olt River.
Prezan and Antonescu arrived at the 1st Army headquarters at Pitești on the morning of 23 November, where they discovered that the situation had already changed completely: the Germans had already crossed both the Olt and the Danube rivers.
The Romanians won a strategic victory because Kühne's forces were prevented from joining the left flank of August von Mackensen's Danube Army, which had crossed the river on 23 November.
It was this exposed left flank of Mackensen's Army that was subjected to a very heavy Romanian attack on the very next day, 1 December, starting the Battle of the Argeș.
The Romanian attack on 1 December put von Mackensen's forces in a situation which was – in the words of Erich Ludendorff – "certainly very critical".