* The Little Black Book of the American Revolution (Citadel Press, 1999)
* An Encyclopedia of Naval History, with Robert L. Scheina (Facts On File, 1980)
* The United States Military Academy and Naval Historical Foundation Handbook to Warfare Planning and Military History, with John A. Lynn and John G. Maffeo (1986)
* Encyclopedia of the American Revolution, with Michael J. Birdseye and John S. Bowman (1999)
* World War One: The Western Front, with John H. Morrow Jr., John Powell and John S. Bowman (1999)
* World War One: The Eastern Front, with John H. Morrow Jr. and John S. Bowman (1999)
* World War Two: The Mediterranean Theater, with John Powell and John S. Bowman (2000)
* World War Two: The European Theater, with Michael S. Neiberg and John S. Bowman (2000)
* World War Two: The Pacific Theater, with John H. Morrow Jr. and John S. Bowman (2000)
* World War Two: The Axis Forces, with John H. Morrow Jr. and John S. Bowman (2000)
* World War Two: The Axis Forces, with Michael S. Neiberg and John S. Bowman (2000)
* World War Two: The Axis Forces, with John Powell and John S. Bowman (2000)
* World War Two: The Axis Forces, with John Powell and John H. Morrow Jr. (2000)
* World War Two: The Axis Forces, with John H. Morrow Jr., Michael S. Neiberg, and John S. Bowman (2000)
* World War Two: The Axis Forces, with Michael S. Neiberg, John S. Bowman, and John Powell (2000)
* World War Two: The Axis Forces, with John H. Morrow Jr., John S. Bowman, and Michael S. Neiberg (2000)
* World War Two: The Axis Forces, with Michael S. Neiberg, John Powell, and John H. Morrow Jr. (2000)
* The Encyclopedia of United States History from 1492 to the Present (HarperCollins, 2004)
* War on the Horizon (Pegasus Books, 2011)
* When Victory Turned Into Peace (Pegasus Books, 2013)
* The Road to Armageddon (Pegasus Books, 2015)
Articles
* "The American Revolution in Perspective" (Prologue Magazine, 1999)
* "The Lessons of the First World War" (World War One, 1999)
* "The World at War" (World War Two, 2000)
* "The Cold War" (The Encyclopedia of the Cold War, 2000)
* "The Vietnam War" (The Encyclopedia of the Vietnam War, 2000)
* "The Middle East" (The Encyclopedia of the Middle East, 2000)
* "The American Revolution" (The Encyclopedia of the American Revolution, 2000)
* "The World at War" (World War Two: The Axis Forces, 2000)
* "The World at War" (World War Two: The Mediterranean Theater, 2000)
* "The World at War" (World War Two: The European Theater, 2000)
* "The World at War" (World War Two: The Pacific Theater, 2000)
* "The United States Military and Navy" (United States History from 1492 to the Present, 2004)
* "The Wars Against Terrorism and ISIS" (The Road to Armageddon, 2015)
* "The End of the Second World War" (When Victory Turned Into Peace, 2013)