Battle of the Jadar, 12-21 August 1914 (Serbia)
One of the first battles of the First World War. Some two weeks after their declaration of war, the Austrians launched their invasion of Serbia on 12 August, crossing the River Jadar to the west of Belgrade, where the Serbs had expected the attack to fall. The Austrians had 200,000 men against a slightly smaller and badly equipped, but experienced Serbian force. The Serbs launched their counter attack on 16 August, and after a few days fighting the Austrians were forced back across the river.
The First World War , John KeeganHow to cite this article: Rickard, J. (4 March 2001), Battle of the Jadar, 12-21 August 1914, http://www.historyofwar.org/articles/battles_jadar.html
. An excellent narrative history of the First World War, especially strong on the buildup to war. Good on detail without losing the overall picture. Keegan keeps to a factual account of the war, leaving out the judgement calls that dominate some books. [see more