Maneuver warfare
From Conservapedia
Maneuver warfare involves attacking key elements of an enemies fighting resources (Command and control elements, logistical support, fire support, etc.) and is frequently combined with isolation of the forces being attacked.
The skillful use of maneuver warfare can result in a smaller military forces prevailing over much larger forces. Napoleon Bonaparte and Sun Tzu are well-known examples of military strategist/leaders skillfully using maneuver warfare with great effect.
While all the major European continental armies spent the 1930’s thinking deeply about armored warfare and doctrinal concepts, the US Army had no armored force at all, and the simple field regulations issued to officers had nothing to say about the matter.