The following is the Bulgarian order of battle at the beginning of the First Balkan War as of October 8, 1912. After its mobilization the field army counted for 366,209 men and represented half the field forces of the Balkan League. Its greater part was deployed in the main theater of the war in Thrace but the army also contributed to the allied war effort in Macedonia. This order of battle includes all combat units, including engineer and artillery units, but not medical, supply, signal and border guard units. GHQ The nominal commander in chief of the Bulgarian Army was Tsar Ferdinand I but de facto its control and leadership were in the hands of his deputy Lieutenant-General Mihail Savov. The Chief of the General Staff was Major-General Ivan Fichev with Colonel Stefan Nerezov as his Deputy Chief. Thracian Theater First Army First Army was commanded by lieutenant-general Vasil Kutinchev. 1st Sofia Infantry Division ( Major-General Toshev) 1st Brigade (Colonel Zheliavski) 1st "Sofia" Infantry Regiment 6th "Turnovo" Infantry Regiment 2nd Brigade (Major-General Popov) 37th Infantry Regiment 38th Infantry Regiment 4th QF FAR 4th FAR 1st Pioneer Battalion 3rd Balkan Infantry Division ( Major-General Sarafov) 1st Brigade (Colonel Paskalev) 11th "Sliven" Infantry Regiment 24th "Black Sea" Infantry Regiment 2nd Brigade (Colonel Ribarov) 29th "Yambol" Infantry Regiment 32nd "Zagora" Infantry Regiment 3rd Brigade (Major-General Tepavicharov) 41st Infantry Regiment 42nd Infantry Regiment 6th QF FAR 6th FAR 3rd Pioneer Battalion 10th Infantry Division ( Major-General Bradistilov) 1st Brigade (Colonel Petev) 16th "Lovech" Infantry Regiment 25th "Dragoman" Infantry Regiment 2nd Brigade (Colonel Atanas Petrov) 47th Infantry Regiment 48th Infantry Regiment 10th FAR 10th Pioneer Battalion Second Army Second Army was commanded by lieutenant-general Nikola Ivanov. 8th Tundzha Infantry Division ( Major-General Kirkov) 1st Brigade (Colonel Marchin) 10th "Rhodope" Infantry Regiment 30th "Sheinovo" Infantry Regiment 2nd Brigade (Colonel Kardzhiev) 12th "Balkan" Infantry Regiment 23rd "Shipka" Infantry Regiment 3rd Brigade (Colonel Pachev) 51st Infantry Regiment 52nd Infantry Regiment 8th QF FAR 8th FAR 8th Pioneer Battalion 9th Pleven Infantry Division ( Major-General Sirakov) 1st Brigade (Colonel Evrov) 4th "Pleven" Infantry Regiment 17th "Dorostol" Infantry Regiment 2nd Brigade (Colonel Popov) 33rd "Svishtov" Infantry Regiment 34th "Troyan" Infantry Regiment 3rd Brigade (Colonel Grancharov) 53rd Infantry Regiment 54th Infantry Regiment 9th QF FAR 9th FAR 9th Pioneer Battalion Haskovo Detachment ( Colonel Delov) 2/2nd Brigade 28th "Stremski" Infantry Regiment 40th Infantry Regiment 3rd FAR Mixed Cavalry Brigade (Colonel Tanev)