I have just completed "Unbroken: A World War II Story of Survival, Resilience, and Redemption" by Laura Hillenbrand. The book's central character is Louis Zamperini, who participated in the 5000m event in the 1936 Berlin Olympics and who also participated in the pacific war. He is still living now at 95 years old.
Before that, I read "Shadow Diver: The True Adventure of Two Americans Who Risked Everything to Solve One of the Last Mysteries of World War II" by Robert Kurson. Essentially, the story about two wreck divers who are trying to identify the identity of the U-Boat which sank in the waters of New Jersey.