Units assigned to the defence of the railways

1^st Divisional Area
Zemen – Sofia	1^st Opalchenie Bn. II (HQ in Sofia)
Sofia – Serbian border	6^th Opalchenie Bn. II (HQ in Tzaribrod)
Sofia – Mezdra	16^th Opalchenie Bn. II (HQ in Kurilo)
2^nd Divisional Area
Kostenetz Baya (inc.) – Tatar Pazardzhik (inc.)	27^th Opalchenie Bn. II (HQ in Tatar Pazardzhik)
Tatar Pazardzhik – Chirpan	9^th Opalchenie Bn. II (HQ in Plovdiv)
Plovdiv – Rakovski (incl.)	21^st Opalchenie Bn. II (HQ in Rakovski)
3^rd Divisional Area
Stara Zagora – Nova Zagora – Tarnovo Saymen	32^nd Opalchenie Bn. II (HQ in Nova Zagora)
Nova Zagora – Zimintza	29^th Opalchenie Bn. II (HQ in Yambol)
Sliven (inc.) – Karnobat (inc.)	11^th Opalchenie Bn. II (HQ in Sliven)
Karnobat – Burgas (inc.)	11^th Opalchenie Bn. II (HQ in Burgas)
4^th Divisional Area
Gorna Orehovitza – Dralfa (inc.)	31^st Opalchenie Bn. II (HQ in Popovo)
Dralfa – Kaspichan (inc.)	7^th Opalchenie Bn. II (HQ in Shumen)
Kaspichan – Varna (inc.) and Gebedzhe – Oborishte	8^th Opalchenie Bn. II (HQ in Sliven)
Razgrad (inc.) – Kaspichan	19^th Opalchenie Bn. II (HQ in Razgrad)
5^th Divisional Area
Levski – Gorna Orehovitza (inc.)	20^th Opalchenie Bn. II (HQ in Gorna Orehovitza)
Trevna – Gorna Orehovitza and Tzareva Livada – Gabrovo	18^th Opalchenie Bn. II (HQ in Drenovo)
Kaspichan – Varna (inc.)	2^nd Opalchenie Bn. II (HQ in Bela)
Ruse (inc.) – Razgrad	5^th Opalchenie Bn. II (HQ in Ruse)
6^th Divisional Area
Mezdra – Lom (inc.) and Boychinovtzi - Ferdinand	35^th Opalchenie Bn. II (HQ in Vratza)
7^th Divisional Area
Gyueshevo (inc.) – Zemen	26^th Opalchenie Bn. II (HQ in Radomir)
Sofia – Kostenetz banya	22^nd Opalchenie Bn. II (HQ in Belovo)
8^th Divisional Area
Chirpan (inc.) – Tulovo	12^th Opalchenie Bn. II (HQ in Chirpan)
Tulovo (inc.) – Trevna (inc.)	23^rd Opalchenie Bn. II (HQ in Plachkovtzi)
Rakovski – Svilen (inc.)	30^th Opalchenie Bn. II (HQ in Harmanliy)
9^th Divisional Area
Mezdra (inc.) – Telish (inc.)	17^th Opalchenie Bn. II (HQ in Cherven breg)
Telish – Somovit (inc.) and Pleven (inc.) – Yasen (inc.)	4^thOpalchenie Bn. II (HQ in Pleven)
Pleven – Svishtov (inc.) and Levski	33^rd Opalchenie Bn. II (HQ in Levski)
10^th Divisional Area
Soflu – Dede Agach - Ksanti	10th Belomorska Division