Drawing and building on the existing literature, this Element explores the interesting and challenging philosophical terrain where issues regarding cooperation, commitment, and control intersect. Section 1 discusses interpersonal and intrapersonal Prisoner''s Dilemma situations, and the possibility of a set of unrestrained choices adding up in a way that is problematic relative to the concerns of the choosers involved. Section 2 focuses on the role of precommitment devices in rational choice. Section 3 considers the role of resoluteness in rational choice and action. And Section 4 delves into some related complications concerning the nature of actions and the nature of intentions.