Invasion games are team sports where the objective is to invade the opposing team's territory while scoring points. They involve carrying, throwing, catching, or kicking a ball into a target area. Examples include rugby, basketball, lacrosse, hockey, soccer, ultimate frisbee, and water polo. Key skills include passing, receiving, dodging, changing direction, spatial awareness, anticipation, and maintaining possession of the ball or object. Attacking strategies focus on keeping possession, avoiding defenders, and creating space to attack the goal, while defensive strategies defend the goal and space and try to regain possession.