From their website:
Contemptible Little Armies 3rd edition is a set of skirmish rules for use with 28mm miniatures. The third edition of the rulebook has been reorganized with a Table of Contents and color photos added. Some changes have been made to the rules as well, specifically, the Direct Fire resolution rules have been changed to take into account a defender’s tactical rating and models hit by Direct fire do not roll for casualty status until the phase just prior to Morale. This will provide a slight bit of uncertainty as to the status of a unit until the morale phase. And, to top it off, a quick reference chart of oft-used tables has been added to the back of the book. This should help speed up play.
“Contemptible Little Armies” takes its title from the Kaiser’s sneer at the British Expeditionary Force of 1914 – which of course soon turned out to be anything but contemptible. As the title suggests, the main focus of the rules is the First World War, but they are also suitable for many of the other conflicts of the same era, for example:
• The Mexican Revolution, 1910 – c.1920.
• The Italian-Turkish War of 1911 – 1912.
• The Warlord Era in China, 1911 – 1928.
• The Balkan Wars, 1912 – 1913.
• The Russian Civil War, 1917 – c. 1922.
• The Greek-Turkish War, 1920 – 1922.