A Navy SEAL’s Guide to Mastering Life’s Transitions

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Mark Greene, a retired Navy SEAL, has walked through seasons of loss, rebuilding, and rediscovery—from college athletics to dropping out, from the SEAL Teams to civilian life. What made the difference wasn’t perfection or toughness—it was community, honesty, and the willingness to keep stepping forward.

Through his own journey and supporting fellow veterans, Mark identified six phases that tend to appear in every transition.


UNSEALED offers those insights as a companion and guide, helping readers approach change with resilience, grace, and confidence.

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About the Author

Mark Greene never planned the path he’s on. After a football injury and leaving college, life could have gone another direction — but resilience, faith, and mentorship led him to the Navy SEALs.

Years later, he continued his education, earning two master’s degrees while learning the deeper lessons of leadership, humility, and purpose.

Today, as an author and speaker, he has the privilege of encouraging others — whether they’re students searching for direction or veterans navigating transition.

But the most meaningful part of his journey isn’t found on a stage — it’s in being a present and grateful father to four amazing kids.

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  • "My friend, BUD/S Classmate, and SEAL Teammate Mark Greene has captured the lessons from his earliest days, the SEAL Teams, combat, and his transition into the private sector in his new book UNSEALED—an open, honest, unflinching account of a life in the trenches, one that will inspire you to build upon your own foundation and achieve your full potential. Make Mark’s journey part of yours—then get to work crushing all you do! Read UNSEALED today!"

    —Jack Carr

    Navy SEAL Sniper and #1 New York Times bestselling author of Only the Dead

  • "For anyone seeking the skills to overcome adversity, Mark Greene, a former Navy SEAL and college football player, lays out the roadmap. This was a must-read for me as it is for you."

    —Jeff Pegues

    CBS News Chief National Affairs and Justice Correspondent, Author, and host of America Changed Forever on SiriusXM Potus Channel

  • "Courage isn’t the absence of fear, rather, it’s the ability to step into our fear. Few understand the courage it takes to pivot in life, make a hard turn, transition from certainty into uncertainty. Mark’s narrative in UNSEALED about his own transition from the military is remarkably ubiquitous, not because we all have to transition, but because we all have to face fear. Mark is a gem, and this book is too!"

    —Rich Diviney

    Bestselling author of The Attributes & Retired Navy SEAL Commander

  • "What sets this book apart is the author’s authenticity and vulnerability. Mark does not shy away from sharing the difficult moments of his transition journey, including the moments of doubt, fear, and sadness. He also shares the moments of hope, love, and triumph that made his transition journey possible."

    —Mark Owen

    Bestselling Author of No Easy Day

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markgreeneauthor@gmail.com