Foreign article about a battle in the dark (7)

I believe the answer is:

unaware

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'in the dark' is the definition.
(I've seen this before)

'foreign article about a battle' is the wordplay.
'foreign article' becomes 'un'.
'about' becomes 'a' (abbreviation in Chambers).
'a battle' becomes 'ware' (I can't explain this - if you can you should believe this answer much more).
'un'+'a'+'ware'='UNAWARE'

Can you help me to learn more?

(Other definitions for unaware that I've seen before include "Heedless" , "Ignorant - unacquainted" , "Ignorant - unconscious" , "Not cognisant" , "Unexpected" .)

I've seen this clue in The Independent.

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