4. Pionire Bataillon(PB) and 13. Sapper Bataillon(SB)

4. Pionire Bataillon(PB)  and 13. Sapper Bataillon(SB)

In Kingdom of Croatia an Slavonia two units of military combat engineer were raised , one unit of Sappers and one unit of Pionires. In late December 1917 / early January 1918, the pioneer battalions (PB) and sapper battalions (SB) then in being, were reformed into new SB, numbered 1-60.

Units raised or partially raised in Croatia  were,  :

4. Pionire Bataillon(PB)-Osijek until 12/17,  reformed into SB  2, 17

13. Sapper Bataillon(SB)- Zagreb until 12 /17, later reformed into  SB 14, 34, 36  .

Information about these units is very scarce , these units were small and their companies were dispersed among many different units,  mail is very rare. Many men of other nationalities served in these units while many Croats served in other  combat engineer units.

I don´t see a point in listing all possible Feldpost numbers as they are plentiful, but I will provide list of formations  according to JOHN DIXON-NUTTALL.

4. Pionire Bataillon(PB):

Aug 1914: 2 Armee unm.-1, 2 Pkomp, XV Kps unm.-3 Pkomp, XVI Kps unm.-4 Pkomp, IV Kps unm.-5 PKomp

1 May 1915: VI Kps unm.-1 Pkomp, 55 ID-2 Pkomp, 44 SchD-4 Pkomp

23 May 1915: 57 ID-3 PKomp

1 Sep 1915: 106 LstID-1 Pkomp, Kps Hofmann unm.-2 Pkomp, VIII Kps unm.-4-PKomp, 2 Armee unm. with IV Kps-5 PKomp

6 Oct 1915: Gp Streith-3 PKomp

15 Oct 1915: 106 LstID-1 PKomp

10 Mar 1916: 106 LstID-1 PKomp

4 Jun 1916: 54 ID-2 Pkomp, 70 HID-4 Pkomp, 1 Armee unm.-5 PKomp

28 Jul 1916: Kps Hofmann unm.-2 Pkomp, 10 KD-4 Pkomp, 92 SchBrig- 5 Pkomp, XIII Kps unm.-1 MaKomp

1 Aug 1916: 5 Armee unm.with VII Kps-3 PKomp

31 Aug 1916: 70 HID-4 PKomp

12 May 1917: VII Kps unm.-one PKomp (Nr3?)

1 Jul 1917:  XVIII Kps unm.-1 Pkomp, 54 ID-2 Pkomp, 46 SchD-5 PKomp

23 Jul 1917: d.Gp Gerok-2 MaKomp

24 Oct 1917: VII Kps unm.-3 PKomp

13. Sapper Bataillon(SB):

Aug 1914: 14 IBrig-1 Skomp, XIII Kps unm.-2,3 Skomp, XV Kps unm.-4,5 Skomp, XVI Kps unm.-6 SKomp

1 May 1915:7 ID-1 Skomp, Gp Ljubicic-2 Skomp, 30 ID-3 Skomp, 40 HID-5 SKomp

23 May 1915: 1 ID-4 Skomp, XVI Kps unm.-6 SKomp

1 Sep 1915: 7 ID-1 Skomp, 36 ID-2 Skomp, XI Kps unm.-3 Skomp, 40 HID-5 SKomp

6 Oct 1915: 53 ID-a MaKomp

15 Oct 1915: 18 ID-6 SKomp

1 Jan 1916: 53 ID-a MaKomp

10 Mar 1916: 1 ID-4 Skomp, 62 ID-6 Skomp, 50 ID-8 SKomp

4 Jun 1916: 7 ID-1,5 Skomp, Brig Papp-2 Skomp, 21 SchD-3 Skomp, 53 ID-a MaKomp

28 Jul 1916: 7 ID-1 Skomp, 34 ID-2 Skomp, 36 ID-3 Skomp,11 ID-5 Skomp, 53 ID-a MaKomp

1 Aug 1916: 1 ID-4 Skomp, 62 ID-6 Skomp,50 ID-8 SKomp

31 Aug 1916:  1 ID-5 SKomp

12 May 1917: 7 ID-1 Skomp, 16 ID-4 Skomp, 62 ID-6 Skomp, 50 ID-8 Skomp, XXIII Kps unm.-one SKomp

1 Jul 1917: 36 ID-3 Skomp, 11 ID-5 Skomp, 53 ID-7 SKomp

23 Jul 1917: 7 Armee unm.-2 SKomp

24 Oct 1917: 50 ID-1,8 Skomp, VII Kps unm.-4 Skomp, 63 ID-6 Skomp, 53 ID-7 SKomp

New Batallions (12/1917-1/1918) formed  from 13. Sapper Bataillon(SB):

SB 14 (from former SB 13)

15 Jun 1918 14 ID - 1 SKomp, Isa unm. - 2 SKomp, 6 Armee unm. - 3 SKomp

15 Oct 1918 14 ID - 1 SKomp, Isa unm. - 2 SKomp, 6 Armee unm. - 3 SKomp

SB 34 (from former SB 13)

15 Jun 1918 34 ID - 1 SKomp, 64 HID - 2 SKomp, 10 Armee unm. - 3 SKomp

15 Oct 1918 50 ID - ?1 SKomp, 64 HID - ?2 SKomp, 3KD - 3 SKomp

SB 36 (from former SB 13)

15 Jun 1918 36 ID - 1 SKomp, 11 Armee unm. - 2 SKomp, 6 Armee unm. - 3 SKomp

15 Oct 1918 36 ID - 1 SKomp, 11 Armee unm. with XIII Kps - 2 SKomp, 31 ID - 3 SKomp

1.1916 card from 5.company  13.Sapper batallion, Fp.111 - 7.Inf.Div  to Czechia

2.1916 card from 4.company  13.Sapper batallion Fp303 - 1.Inf.Div  to Brod n/S.  Slavonia ,Croatia

2.1918 card from 1.company 34.Sapper batallion, Fp.642 - 34.Inf.Div to Osijek, Croatia

11.1917 card from 9.company. 4.Sapper batallion Fp.427 - 7.Inf.div to Zagreb 

11.1915 card from 5.company. 3.Pionire batallion Fp.38 - XIII.(Croatian)corps to Zagreb