This is a book about service on the frontlines.
-- Eric Greitens (Preface paragraph 1)

Importance: In the Preface to his book, Eric explains succinctly to the reader that his book is about serving on the frontlines. While this certainly includes combat and danger, it also includes the humanitarian efforts of Eric and the Navy SEALs. All too often, people assume that American military forces only ever go to war, but this is not true, for American servicemembers do tremendous humanitarian service for people around the world as well.

As warriors, as humanitarians, they’ve taught me that without courage, compassion falters, and without compassion, courage has no direction.
-- Eric Greitens (Preface paragraph 1)

Importance: As Eric continues the Preface, he makes clear the case for courage and conviction. He explains that both are equally important in the role a SEAL plays. SEALs, and other men and women in uniform, must be brave so that they may be compassionate. They need courage to...