Michael Peyton grew up in a family with a legacy of military service. As a young man he joined the Navy for one simple reason: he wanted to be a SEAL. In more than two decades that followed, Peyton and his fellow SEALs deployed four times to Afghanistan and twice to Iraq.

In this edition of "Veterans Chronicles," Peyton describes the very rigorous SEAL training process and how he passed BUD/s training while learning to swim at the same time. He also takes us into his first combat experience, explains how SEAL teams operate so effectively, and the challenge of going from a SEAL team member to a team leader.

Finally, Peyton talks about his new organization, Tribe, Task and Purpose, which is designed specifically to help special operations veterans end their dependency on drugs and alcohol. For more information, visit tribetaskpurpose.org.