4754  strateuomai  strat-
yoo'-om-ahee

 middle voice from the base 
of 4756; to serve in a 
military campaign; 
figuratively, to execute the 
apostolate (with its arduous 
duties and functions), to 
contend with carnal 
inclinations:--soldier, (go 
to) war(-fare).

 see GREEK for 4756