The Siege of Bastogne was written from interviews with nearly all the commanders and staff officers who participated in the defense of Bastogne. It is essentially the account of how a single strong defensive force was built from separate commands of armor, airborne infantry, and tank destroyers. The interviews were conducted at Bastogne from December 31st, 1944 to January 25th, 1945, and were conducted with individual officers and also with whole groups whenever possible, including reviewing problems of the defense with commanders at the original scenes of their actions, as well as acquiring additional information from official records. A few of the headings include the concentration, attack and withdrawal, doubts and decisions, low ebb and arrival of supply, and Christmas Eve among others highlighting the battle.