For those wishing to explore the depths of military arcana, the following website has many WWII US field and technical manuals on a wide range of subjects including among other things, small arms weaponry, military engineering, vehicles, military doctrine and tactics (WWII style). There is also a section dealing with medical matters...but the contents should be looked at as of historical interest only. It doesn't represent current best practice in casualty treatment and wound care. 90th IDPG Manuals