He then went to France for supplementary studies at the "École supérieure de guerre". Upon the outbreak of the First Balkan War in 1912, he was recalled from his studies in Paris. During the Balkan Wars he served in the staff of the 4th Infantry Division under Major General Konstantinos Moschopoulos. From this position, he participated in the battle of Sarantaporo and the drive to Thessaloniki. In December 1912, he suggested to Lt General Konstantinos Sapountzakis, and then to the Crown Prince Constantine the idea of capturing the strategic hill of Tsouka, west of the fortress of Bizani that was blocking the Greek advance towards Ioannina. In the Battle of Bizani, the hill was captured, leading to the liberation on February 21, 1913 of Ioannina. During the Second Balkan War, Kalogeras fought in the battle of Kilkis-Lahanas.