"During the war to free the southern states from slavery, many young Americans went to the front, ready to give their lives for the freedom of their neighbors. The book "Under the Flag, from August 1861 to November 1862, with the Army of the Potomac" recreates the ordeals and heroic battles that took place during the Civil War in the United States. Author Charles Carlton Coffin describes in detail the lives of soldiers, their feelings and the realities of war, making this book a fascinating and unique testimony of that important period in the history of international relations.