Crossword Genius

Where US troops are in uniform ... in Georgia ... Montana, possibly? (10)

Ross

I believe the answer is:

guantanamo

I'm a little stuck... Click here to teach me more about this clue!

'where us troops are' is the definition.
I don't know anything about this answer so I cannot tell whether this works.

'uniform in georgia montana possibly?' is the wordplay.
'uniform' becomes 'U' (phonetic alphabet: alpha, bravo, charlie etc.).
'in' is an insertion indicator.
'georgia' becomes 'GA' (abbreviation for the US state).
'possibly?' is an anagram indicator (I've seen 'possibly' mean this).
'montana' with letters rearranged gives 'ntanamo'.
'ga'+'ntanamo'='gantanamo'
'u' going into 'gantanamo' is 'GUANTANAMO'.

'in' acts as a link.

Can you help me to learn more?

I've seen this clue in The Everyman puzzle in The Observer.
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