order of play follows the order of House marks on the Iron Throne Influence track. First, players alternate executing any Raid orders in play, and then players alternate executing March orders. If a player uses a March order to move units into a region occupied by another player's units, a battle is initiated. During a battle, each player totals the strength of all of his non-routed units in the disputed region, which may be modified by values on an appropriate March or Defend orders. Players may then solicit help from any units in adjacent regions, controlled by any player including those involved in the battle, who have placed a Support order this round. Finally, players select an unused House card from their hand to represent their leader in the battle. House cards have various effects on the battle, which may include strength increases, extra damage, negation of damage, or other unique effects. The player with the highest total wins the battle, and the losing units must leave the region routed, or possibly be removed entirely if enough damage was inflicted. Ties are won by the player with a higher position on the Fiefdoms Influence track. Once per round, the player holding the Valyrian Steel Blade special token can add a +1 bonus to their side of a battle. Finally, players can claim more power tokens by executing any Consolidate Power orders remaining on the board. Other than during battles, if at any point a tie occurs, such as when bidding for positions on the Influence tracks, the player holding the Iron Throne special token determines who wins the tie. Expansions A Clash of Kings The expansion A Clash of Kings was released in 2004, and added several variant rules that can be used with the base A Game of Thrones. Additions include House Martell, a new unit type (Siege Engines), rules for ports, a second possible set of 7 House character cards for all six Houses with a wider variety of effects, and new unique special orders for each House. This expansion was integrated into the base game with the release of the second edition. A Storm of Swords The expansion A Storm of Swords was released in 2006, and adds more variant rules to be used with the original A Game of Thrones, either with or without A Clash of Kings. Additions include Tactics cards, Ally cards, new sets