The title of the book, “Extreme Ownership” is a conclusion and a summary that could best describe the valuable lessons the authors learned from their thirty-three years of combat military experience. They found that great leadership is characterized by the ability to take ownership of everything that happens within or outside the rank, so as long as it affects you. They also established that a leader should take responsibility for everything that is aligned towards the mission of the group or the organization. From their experience in the battlefield, they portray that a leader should not blame the subjects when things go wrong, but rather be the ones to bear the blame and own it all. This will be very fundamental in creating a sense of responsibility to every subject at any level of the organization or group rank. The book is divided into three parts. The first part lays ground to the philosophy of extreme ownership and presents leadership as the core determinant of team effectiveness. The second part dubbed “The Laws of Combat” presents four basic laws that should be followed in cases where the situation is adverse and out of control. The final part is about sustaining the victory acquired after practicing the principles and laws outlined previously. In Extreme Ownership, the authors share the key battlefield lessons and distill them to principles that can be adopted and practiced by individuals or organizations. Jocko and Leif wrote the book to capture the leadership principles for future generations; they wanted to emphasize on the lessons so that they may not be forgotten or need relearning in case of war or dire organizational situations. The lessons were meant to impact the team in the battlefield such that they could use the principle of leading.