drive a wedge between

:  to frighten or prod (game, cattle, etc.) into moving in a desired direction

:  to go through (an area) driving game animals

:  to carry on or through energetically

:  an act of driving:

:  a trip in a carriage or automobile

:  an instance of collecting and moving animals (such as game or cattle) together in a desired direction

:  a piece of a substance (such as wood or iron) that tapers to a thin edge and is used for splitting wood and rocks, raising heavy bodies, or for tightening by being driven into something

:  something (such as a policy) causing a breach or separation

:  something used to initiate an action or development

:  to fasten or tighten by driving in a wedge

:  to force or press (something) into a narrow space :  cram

:  to force (one's way) into or through