Fortified sector Opava

SubsectorCasematesNumber of
casemates
commissioned
Number of
casemates
built by 1938
Note
1./IV. Male HosticeOP-S 6, OP-S 9–OP-S 1588 
2./IV. JaktarOP-S 16–OP-S 2499 
3./IV. MilostoviceOP-S 25–OP-S 29
OP-S 37–OP-S 41
107 
3a./IV. Velke HeralticeOP-S 42–OP-S 45b50 
4./IV. SibeniceOP-S 30–OP-S 36b102including artillery group Sibenice