Colonel Blotto has 3 divisions with which to defend 2 mountain passes. His opponent also has 3 divisions. Blotto successfully defends a pass if and only if he allocates an equal or greater number of divisions to it as his opponent. Blotto wins if he successfully defends both passes, and loses otherwise. Blotto's payo is 1 if he wins and 0 if he loses. Characterize the (mixed) Nash equilibria of the game.