What is the theme in Pegasus Bridge: June 6, 1944 by Stephen E. Ambrose?

Strategy is a recurring theme of the novel. Strategy is very important to the success of military campaigns and the Normandy invasion was one of the biggest military campaigns the world has ever seen. The planning for the invasion began two years in advance of the event under the direction of General Frederick Morgan. They selected the beaches of Normandy as the invasion site by the spring of 1943.