If you're looking for an exciting game of strategy and world domination, Risk is a classic that you should definitely play. You'll compete against your friends by battling armies and controlling territories on a map until there's only one...
Shuffle the pack of RISK cards (maybe, remove the Mission cards) and place the cards face down by the side of the board. This pack forms the draw pile. Whoever placed the first army opens the game. On your turn, try to capture territories by defeating your opponents' armies.