Martha MacCallum goes inside the Greatest Generation's unsung heroes and her personal connection to their sacrifice. Watch “Unknown Valor: A Story of Family, Courage, and Sacrifice," tonight at 10p ET on Fox News Channel. | Fox News

In 'Unknown Valor: A Story of Family, Courage, and Sacrifice,' Martha MacCallum sits down with a WWII veteran who served alongside her uncle, Private Harry Gray, and learns more about his heroic service before being killed in action in 1945. https://bit.ly/2TfeM7C | Fox Nation

22K views · 833 reactions | The AVC would like to thank Martha MacCallum for honoring the memory of two Iwo Jima veterans who passed away recently. Joe Rodgers enlisted in the USMC when he was just 16 years old and found himself in the second landing wave hitting the beaches of Iwo Jima. Another Marine, Thiele Fred Harvey would earn the Silver Star for his bravery during a 3-man patrol on the island. Lest we forget | American Veterans Center | Facebook