The US military, along with several military colleges and think tanks across the nation, have used Columbia block games for strategic planning and teaching.  Some have also used wooden blocks, procured from Columbia Games, to make their own simulations and wargames.

The following is a partial list:

Department of Defense Army University,  Ft Leavenworth, KS.
Institute for Defense Analysis, Alexandria, VA
National Defense University, Washington, DC
American Military University, Charles Town, WV

The most popular titles are EastFront, Napoleon: Waterloo, and Shenandoah: Jackson’s Valley Campaign.