It depends which war one is talking about but there are numerous websites that carry information about wars. One can find information on the website for 'US Army Center of Military History'. There is also much information on Wikipedia and 'Best of History Websites'.
There is lots of information online. For example, try the link to the left.
There are many places where one can find information on the war between Google and Microsoft. One can find information on the war between Google and Microsoft at popular on the web sources such as Open Forum and Forbes.
One can find more information about commonwealth war graves on the 'Commonwealth War Graves Commission' website. One can search their database to find a particular name.
Information regarding the Thirty Years War can be found in a number of online journals. Journals such as Spiegel Online, Oxford Journals, Catholic Encyclopedia, and University Publishing Online all offer articles featuring extensive information regarding the Thirty Years War.
One of the finest online resources for information about the First World War (and other historical topics) is John Simkin's well-credentialled Spartacus Educational website. Check out the link below.
You can find more information about shields used by the Romans online at websites such as Total War Center. If you have certain shield names in mind such as the scutum you can visit the associated Wikipedia page.
There are a number of sites that offer informative and educational information about World War II. One can find information on the History website, Wikipedia and the Encyclopaedia Britannica website.
One can find more information on the War in Darfur on websites such as Americares, Insight on Conflict, Wikipedia, Jewish World Watch, Save Dafur or BBC.
One can find a walkthrough for God of War online on websites, such as Gamespot, IGN, WikiCheats and PowerPyx. God of War is an action and fighting game.
You can visit the Wikipedia website to find more information on the video game Operation Flashpoint Cold War Crisis. There are also websites such as Ign, Gamefaqs and Amazon which have information on the game and reviews both by critics and consumers.
One can find out more information on the group IFOR (International Fellowship of Reconciliation) by visiting their website, ifor. It was founded in 1914 as a response to war and its horrors.
If someone wanted to find action games online, there are a variety of places where someone can do so. Some of these places are World of War Planes and Zylom.