Eagle's Prey: Advance & Retreat Regimental Rules for the American Civil War 1861-1865 is a complete and comprehensive supplement for the Age of Lincoln and the American Civil War! Advance & Retreat allows players to refight the struggle the Union! Refight the battles or create new ones with our scenario generation tools Allows for a 20,000 man game to be completed in 3-4 hours Can be used with any scale and no rebasing needed Covers the various factions and forces list Features HRG’s Terrain Generation system Follows historical organization and unit capabilities Includes a Scenario generator and player aid tools Rated Leaders for Brigade and Division command Command Brigade Level or regimental action Includes a scenarios with more available online Features Naval rules for transports Can be used with CASEMATE & CANNON Civil War Naval Rules –description from back of the book