The Romanian Royal Army
BATALIOANE PIONIERI FORTIFICATII (Bat.Pi.Fo.).
The Fortification Sappers Battalions.
During wartime, 1939-1941, a Batalion Pionieri Fortificatii was mobilised for each Fortification Brigade.
Bat. 1 Pi.Fortificatii (formed )
| .41- | Bg. 1 Fortificatii |
Bat. 2 Pi.Fortificatii (formed )
| .41- | Bg. 2 Fortificatii |