I've been playing, criticizing, revising, and designing games since I first got Avalon Hill's Tactics II in ... 1960?
LOTS of free military history boardgames on my webpages.
WARNING: My www.CoatneyHistory.com
webpage has to be renewed every year in April and my current age is 67, so it would be wise to download anything you want there before then. My http://LCoat.tripod.com
webpage will last as long as Tripod.com does but has a capacity of only 20MB.
Good, simple introductory games are 1st Alamein, Leyte Gulf Naval Chess Game, and Moscow Defended! - on the latter webpage - and Gazala Gallop (using the 1st Alamein system) and France 1914 on CoatneyHistory.