The Yildirim Army Group or Thunderbolt Army Group of the Ottoman Empire (Turkish: Yıldırım Ordular Grubu) or Army Group F (German: Heeresgruppe F) was one of the army groups of the Ottoman Army. It was formed during World War I.
The army group included troops who used the latest Western-Front infiltration tactics; were equipped with close-combat gear, such as Stahlhelms and stick-grenades; and were supported by artillery and machine guns.
In August 1917, the army group was structured as follows:
Yildirim Army Group (Müşir Erich von Falkenhayn)Seventh Army, Syria (Mirliva Mustafa Kemal Atatürk)III Corps24th Division50th DivisionXV Corps19th Division20th DivisionGerman Asia CorpsSixth Army, Mesopotamia (Mirliva Halil Kut)XIII Corps2nd Division6th DivisionXVIII Corps14th Division51st Division52nd Division46th Divisionwith the
42nd Division48th Division59th DivisionXX Corps at Huj16th Division54th Division178th Infantry Regiment3rd Cavalry DivisionXXII Corps at Gaza3rd Division7th Division53rd DivisionIn January 1918, the army group was structured as follows:
Yildirim Army Group (Müşir Erich von Falkenhayn)Seventh Army (Mirliva Fevzi Çakmak)III Corps1st Division, 19th Division, 24th DivisionXV Corps26th Division, 53rd Division3rd Cavalry DivisionGerman Asia CorpsEighth Army (Ferik Cevat Çobanlı)XXII Corps3rd Division, 7th Division, 20th Division16th Division, 54th Division, 2nd Caucasian Cavalry DivisionIn June 1918, the army group was structured as follows:
Yildirim Army Group (Müşir Otto Liman von Sanders)Seventh Army (Mirliva Fevzi Çakmak)III Corps1st Division, 24th Division, 3rd Cavalry DivisionXV Corps26th Division, 53rd Division, 19th DivisionGerman Asia CorpsEighth Army (Ferik Cevat Çobanlı)XXII Corps3rd Division, 7th Division, 20th Division16th Division54th Division2nd Caucasian Cavalry DivisionIn September 1918, the army group was structured as follows:
Yildirim Army Group (Müşir Otto Liman von Sanders)Fourth Army (Mirliva Cemal Mersinli)II Corps (Miralay Galatalı Şevket Bey)62nd Division, Provisional Division x 3Jordan Group24th Division, 3rd Cavalry DivisionVIII Corps (Miralay Yasin Hilmi Bey)48th Division, Umman Provisional DivisionSeventh Army (Mirliva Mustafa Kemal Atatürk)III Corps (Miralay İsmet İnönü)1st Division, 11th DivisionXV Corps (Miralay Ali Fuat Cebesoy)26th Division, 53rd DivisionEighth Army (Ferik Cevat Çobanlı)XXII Corps (Miralay Refet Bele)7th Division, 20th DivisionLeft Wing Corps (Oberst Gustav von Oppen)16th Division, 19th DivisionGerman Asia Corps2nd Caucasian Cavalry DivisionIn November 1918, the army group was structured as follows:
Yildirim Army Group (Mirliva Mustafa Kemal Atatürk)Second Army (Mirliva Nihat Anılmış)XII Corps23rd DivisionXV Corps41st Division, 44th DivisionSeventh Army (Mirliva Ali Fuat Cebesoy, deputy)III Corps11th Division, 24th DivisionXX Corps1st Division, 43rd DivisionIn April 1919, Şevket Turgut Pasha, Cevat Çobanlı and Fevzi Çakmak hold a secret meeting in Constantinople. They prepared a report called "Trio Oath" (Üçler Misâkı) and decided to establish army inspectorate for the defense of homeland. In late April, Fevzi Çakmak submitted this report to the Minister of War Şakir Pasha. On April 30, 1919, the War Ministry and Sultan Mehmed VI ratified the decision about the establishing of army inspectorates that had been accepted by the Chief of General Staff And then the First Army Troops Inspectorate (stationed in Constantinople, Fevzi Çakmak), the Yildirim Troops Inspectorate (stationed in Konya, Cemal Mersinli, later Second Army Inspectorate) Inspectorate, the Ninth Army Troops Inspectorate (stationed in Erzurum, Mustafa Kemal Atatürk, later Third Army Inspectorate) was formed. Additionally, the Rumeli Military Troops Inspectorate (Nureddin Pasha) would be established and the XIII Corps would be under the direction of the Ministry of War. In May 1919, the army inspectorate was structured as follows:
Yildirim Troops Inspectorate (Yıldırım Kıt'aatı Müfettişliği, Konya, Inspector: Ferik Cemal Mersinli)XII Corps (Niğde, Miralay Selâhaddin Bey)11th Division41st Division7th Cavalry Regiment20th Cavalry RegimentXX Corps (Ankara, Mirliva Ali Fuat Cebesoy)23rd Division24th DivisionXVII Corps (Smyrna, Mirliva Ali Nadir Pasha, transferred from the First Army Troops Inspectorate after the Occupation of Smyrna)56th Division57th Division