What does UMBRA stand for?
UMBRA stands for "[not an acronym] US Codeword for high grade SIGINT"
How to abbreviate "[not an acronym] US Codeword for high grade SIGINT"?
"[not an acronym] US Codeword for high grade SIGINT" can be abbreviated as UMBRA
What is the meaning of UMBRA abbreviation?
The meaning of UMBRA abbreviation is "[not an acronym] US Codeword for high grade SIGINT"
What does UMBRA mean?
UMBRA as abbreviation means "[not an acronym] US Codeword for high grade SIGINT"
![What does UMBRA mean? It stands for [not an acronym] US Codeword for high grade SIGINT](http://acronymsandslang.com/acronym_image/2252/4b098aeab51e764240fd70a2620a6bbf.jpg "What does UMBRA mean? It stands for [not an acronym] US Codeword for high grade SIGINT")