With the threat of invasion from Hitler’s forces looming large in 1940, British men of all ages and backgrounds assembled under the banner of the Home Guard. At its height, this voluntary force, much later nicknamed ‘Dad’s Army’, was made up of almost two million volunteers prepared to defend every corner of the kingdom. Numerous notable figures were involved including George Orwell, A.A. Milne, and C.S. Lewis; many women took part too, including in the Women’s Home Defence Force, which was formed in 1941. Sunday Times bestselling author Sinclair McKay tells the remarkable story of these courageous, highly trained and often pioneering men and women through original archival research, vivid storytelling and insights into the beloved television comedy that has shaped the national memory of the Home Guard.