International military grp (4)

I believe the answer is:

nato

(Other definitions for nato that I've seen before include "Military/political alliance" , "US/Europe alliance" , "Atlantic alliance (abbr.)" , "Security agreement" , "International organisation for collective security" .)

I've seen this clue in the USA Today.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.