# unrestricted submarine warfare

> Military Doctrine

**Wikidata**: [Q1119089](https://www.wikidata.org/wiki/Q1119089)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Unrestricted_submarine_warfare)  
**Source**: https://4ort.xyz/entity/unrestricted-submarine-warfare


## References

1. Freebase Data Dumps. 2013