From the web site:

The Empires in America Expansion Kit includes the latest errata and plenty of new Optional Rules for the struggle for a continent in North America. Among its 24 additional cards are two additional French and two additional British Leaders, and plenty of new Action, Provincials, British and World Event cards to make the game's narrative much more compelling.

Optional Rules include: Fortress Garrisons, Leader Morale, Governing, and The Royal Navy. A special historical notes section includes Standing Orders: Rodgers' Rangers, and a commentary on those famous Standing Orders.

Game Components:

• One instructions sheet with new Optional Rules and Historical Notes
• Twenty-four new cards