Lt. Michael Murphy, Matthew Axelson, and Danny Dietz were Navy SEALS who lost their lives on a mountain in Afghanistan during Operation Red Wings in 2005. Only one man left that mountain alive, Marcus Luttrell, known as the Lone Survivor. Luttrell survived in part due to the efforts of Michael Murphy, who sacrificed his life to get a phone signal so that the team’s location could be determined by their military support group. Check out this post for the full story.