A new documentary is aiming to lift the lid on the unrecognised Black heroes of D-Day. It follows an all-African American battalion of men whose crucial role in the Normandy landings was never revealed. One member of the company was even nominated for a Medal of Honor, but amid racial segregation in the US at the time, it was impossible for him to ever be granted it. The documentary follows the work chronicled already in a book, "Forgotten: The Untold Story of D-Day's Black Heroes". Its author Linda Harvieux joined us for Perspective.