Answer:

reconnoiter

AnswerCrossword Clue
RECONNOITERSurvey an enemy position
RECONNOITERKeep tabs on the enemy
RECONNOITERMake strategic survey of land.
RECONNOITERScout
RECONNOITERScout out
RECONNOITERSurvey militarily