alliance headquartered in brussels: crossword clues

Matching Answer
Confidence
NATO
95%
SEATO
60%
OAS
60%
OPEC
60%
BASED
45%
UAR
42%
ENSOR
41%
BLOC
20%
SPROUT
20%
ENTENTE
20%
e.g. Greek Cheese
e.g. O?D (Use ? for unknown letters)