In 1911, Bakirtzis was admitted to the
Hellenic Army Academy and participated in the
First Balkan War, in 1912, as a sophomore. Specifically, he served in the
Army of Epirus with the Independent Cretan Regiment, as a sergeant. In August 1914, the outbreak of World War I and the subsequent manifestation of the
National Schism, which occurred due to the dispute between
Eleftherios Venizelos and
King Constantine over the foreign policy pursued, found Bakirtzis serving in
Kavala with his rank Artillery. From the beginning of 1916 until the occupation of most of the forts of eastern Macedonia in the same year by the Germans and Bulgarians, with the simultaneous evacuation of the rural areas by the Greek population, Bakirtzis, not tolerating the upcoming surrender of the Fourth Army Corps, decided to fight for the preservation of
Macedonia in the Greek national body. He signed with the Venizelos officers of the National Defense, assuming command of artillery and then commander of artillery squadron. He was one of the first defenders and distinguished himself in the
battle of Skra, winning the British military medal (
Distinguished Service Order). Later, in 1919, he went on a scholarship for three years to
France, where he studied at the Higher School of War, leading among 380 distinguished officers from allied countries. Later, he returned to Greece, at war with Turkey, and fought in Asia Minor. In 1922, now in the rank of major, he participated in the Revolutionary Committee of Plastiras that overthrew King Constantine I after the
Asia Minor Catastrophe. With the entry of the revolutionary forces in
Athens, he went to
Evros, collaborated in the defensive line of the front and was the trainer of the famous
Evros Army. Later, with the rank of lieutenant colonel, as Chief of the Artillery in
Asvestochori, Thessaloniki, dealt with reorganization and reorganization of the Greek Army. In October 1923, when the Leonardopoulos-Gargalidis Movement broke out, Bakirtzis, along with other loyal government officials, such as
Georgios Kondylis,
Stefanos Sarafis,
Dimitrios Psarros, etc., were informed in advance that the movements were the situation in their hands, before the manifestation of the movement in the city of
Thessaloniki. They then confronted the military forces led by Colonel George Ziras against the city and forced them to surrender. In 1926, as a lieutenant colonel, he was arrested and sentenced to death, as one of the leaders of the military coup of Tzavela-Bakirtzis, but was not executed. In 1928 he returned to the army and in 1930–31, with the rank of colonel, he served as a military attaché in
Sofia and
Bucharest. There he was honored with the senior Brigadiers of Bulgaria and Romania. He returned to Greece and took over the management of the 2nd Staff Office (Information) of the General Staff. He also served as chief of staff of the 3rd Army Corps. In 1935, now a colonel, he took part in the Movement of March 1, 1935. He was arrested and sentenced to death for the second time, but his sentence was eventually commuted to deportation from the army and exile to
Agios Efstratios (June 25, 1935). He stayed there for a year. He was later demoted to the rank of ordinary soldier and exiled to
Antikythera, where his detention conditions were very bad and dangerous to his health. In 1937, he moved to Athens and the
Metaxas government asked him to cooperate with the dictatorship and offered him a high position in the General Staff. He refused and was allowed to leave for Bucharest immediately, without having the right to move from there. In fact, he is deprived of his salary and the money of the Share Fund but fortunately his son-in-law, doctor Alexandros Dimitriadis, had support. In Bucharest he wrote three excellent studies that were first published in the book by Euripides Bakirtzis, published by Epikairotia, under the supervision of his exile detainee, Nikos Margaris. These were The Military Value of Greece, The Countries of the Lower Danube and The New Turkey. Especially for the latter, the Turkish ambassador in Bucharest conveyed the congratulations of his government. == World War II and resistance ==