The book "Company 'A', Corps of Engineers, United States, 1846-1848, in the Mexican War" by Gustavus Woodson Smith is a historical essay on important events of the war between the United States and Mexico. This book examines in detail the contribution of 'A' Company of the Corps of Engineers to the war, their tasks and the challenges they had to face. The author Gustavus Woodson Smith tells about the lives and battles of soldiers, about the enormous stress they endured in the struggle for victory. This book is an essential resource for anyone interested in military history and mid-nineteenth-century American events.