"Macgregor was the top planner for General Wesley Clark, the military commander of NATO, for the attack on Yugoslavia.In the fall of 2001, Secretary of Defense Donald Rumsfeld, who had read "Breaking the Phalanx", insisted that General "Tommy" Franks and his planning staff meet with Colonel Macgregor on 16–17 January 2002 to discuss a concept for intervention in Iraq involving the use of an armored heavy force of roughly 50,000 troops in a no warning attack straight into Baghdad.