Invariably when I get into a discussion with someone about the gaming industry, whether it is someone in the industry or not, the game of War comes up.  To be more accurate the name of the game you see in the casino is Casino War.  It really isn't much different than the game you used to play as a kid.  You get one card, Dealer gets one card.  High Card wins.  If you tie, you go to war.  In the casino version it ends at one war in order to keep the speed up and as a means of creating a house edge.  You play for money instead of trying to win the whole deck, which in this case is usually a shoe of 6 or 8 decks of cards.