A 55-year-old combat medic, Dr. Tuvia Book, who saved Israeli singer and reservist Idan Amedi on the Gaza battlefield, shares how his unit rescued 2,851 lives—including hostage Noa Argamani.

Dolev Yehud, 35, was thought to have been held hostage for the last eight months.

The soldier bleeding profusely from his left leg was crying out in pain when they reached him.