During the Greco-Turkish War of 1897, he served in the expeditionary corps sent to Crete under Colonel Timoleon Vassos.

There again, however, he was after a few days appointed as Chief of Artillery of the Army of Epirus, playing a crucial role in the successful Battle of Bizani and the capture of Ioannina.

[2] In April 1913 he was placed in command of the newly formed 10th Infantry Division, which he led during the Second Balkan War against Bulgaria, from the Battle of Doiran to the area of Pečkovo.

[2] After World War I, Paraskevopoulos took over direct command of the Greek forces that occupied Smyrna in 1919 in accordance with the Treaty of Sèvres.

Under his command, the Hellenic Army successfully extended their occupation zone, from the greater Smyrna area, south to Aydın and north to Bursa.