Intelligence about soldiers in recent warzone (4)
I believe the answer is:
iraq
'recent warzone' is the definition.
(as in the Iraq War)
'intelligence about soldiers' is the wordplay.
'intelligence' becomes 'iq' (short for intelligence quotient).
'about' is an insertion indicator.
'soldiers' becomes 'RA' (abbreviation for Royal Artillery).
'iq' placed around 'ra' is 'IRAQ'.
'in' acts as a link.
(Other definitions for iraq that I've seen before include "troubled state" , "Mosul's country" , "Asian area of conflict" , "Middle Eastern nation" , "Baghdad's country" .)