Download or read book FM 3-09.21 Field Artillery Cannon Battalion written by U S Army and published by . This book was released on 2021-03-13 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: Army Techniques Publication (ATP) 3-09.23 provides techniques for the field artillery (FA) cannon battalion commander and staff in support of the maneuver commander. This publication is the principle reference for the FA cannon battalion.