These cards do not require any new or special rules, just add them to your fleets and you are ready to play even bigger battles. Included are more ships for the nine navies featured in the original game (USA, USSR, UK, France, China, Argentina, Taiwan, Norway, and Japan) plus 3 NEW navies! (Germany, Italy, and Canada). We've also included several more civilian ships for escort scenarios. You must have Modern Naval Battles - Global Warfare to use this expansion.