Shawn Ryan served as a Navy SEAL for almost six years. After seeing combat in Afghanistan, Iraq, and Haiti, Ryan left the Navy and worked as a contractor for the CIA. Today, he runs a YouTube channel and a podcast, "The Shawn Ryan Show." Macer Gifford is a former currency trader who volunteered to fight for the Ukrainian army against Russia in 2022 and for the Kurdish People's Defense Units, or YPG, against the Islamic State in 2015. He is the author of "Fighting Evil." Kenneth Valentine served as a special agent in the US Secret Service for 24 years. He protected three sitting presidents: Bill Clinton, George W. Bush, and Barack Obama. Today, he's a published author, leadership expert, and public speaker. L. David Marquet is a former United States Navy Captain and author who served in the submarine force for nearly three decades. Following his time in the Navy, Marquet published "Turn the Ship Around" in 2013, detailing his time on the Santa Fe. He published "Leadership is Language...