# Big blue blanket

> Air defense system

**Wikidata**: [Q2902371](https://www.wikidata.org/wiki/Q2902371)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Big_blue_blanket)  
**Source**: https://4ort.xyz/entity/big-blue-blanket


## References

1. Freebase Data Dumps. 2013