- Army - The official website of the United States Army.
- Imperial War Museum -
The Imperial War Museum is unique in its coverage of conflicts, especially those involving Britain and the Commonwealth, from the First World War to the present day.
- Marines - The official website of the United States Marine corps.
- Naval and Military Press - Offer specialist books for the serious student of conflict. The range of titles stocked covers the whole spectrum of military history with titles on uniforms, battles, official histories, specialist works containing medal rolls and casualties lists, and numismatic titles for medal collectors and researchers.
- Navy - The mission of the Navy is to maintain, train and equip combat-ready Naval forces capable of winning wars, deterring aggression and maintaining freedom of the seas.