The World Wars

• World War I and World War II collections of the Milwaukee Urban Archives, University of Wisconsin-Milwaukee.
• Break of Day in the Trenches
  A hypermedia edition, with a fascinating and accessible virtual seminar.
• The Imperial War Museum
  London's museum of war. Useful for brief histories, information, images, and links.

Tanks

• The Tank Museum
  In Bovington, England.

Aviation

• Royal Air Force
• Aviation Links
  Provided by the Rensselaer Aeronautical Federation.

Battle of El Alamein

• Personal Account
  An article written by an Australian soldier during the battle.
• War Poets
  Napier University Library's excellent collection of texts, articles, images, links, and selections from The Hydra, the magazine written and published by soldiers recovering in Craiglockhart War Hospital.

Hiroshima

• Atomic Bomb: Decision
  Documents on the decision to use the atomic bomb on the cities of Hiroshima and Nagasaki.
• The Hiroshima Project
• Trinity Atomic Web Site
  Nuclear Weapons: History, Technology, and Consequences.
• Personal Account
  One of many harrowing personal recollections of the bombing of Hiroshima.