This book combines New Vanguard 38- 'American Civil War Artillery 1861-65 (1) Field Artillery' and New Vanguard 40- 'American Civil War Artillery 1861-65 (2) Heavy Artillery'. Perhaps the most influential arm of either army in the prosecution of the American Civil War, the artillery of both sides grew to be highly professional organizations. Because of the length of the coastline of the United States, from the beginning American ordnance placed an emphasis on its 'Heavy Artillery' mounted in coastal defenses, while their 'Field Artillery' units were assigned across the fighting fronts. In battle, the introduction of both the 12-pdr. Napoleon and rifled cannon provided a range and power previously unknown on American soil. This book details the development and usage of this vital cog in the war-machine of both sides.