This manual, Army Techniques Publication ATP 3-20.15 MCRP 3-10B.1 Tank Platoon July 2019, encompasses techniques for tank platoons of armored brigade combat teams (ABCTs). It replaces ATP 3-20.15, published in December 2012. ATP 3-20.15/MCRP 3-10B.1 provides doctrinal guidance; describes relationships in the platoon; defines organizational roles and functions, capabilities, limitations; and lay outs the responsibilities for platoons during unified land operations. The tank platoon is a unified team; all tanks crews work together to achieve mission success. A single tank can be vulnerable in the face of diverse battlefield hazards, such as enemy forces or unfavorable terrain and situations. These vulnerabilities are significantly reduced when tanks are employed as platoons. The tank platoon requires bold, aggressive, resourceful, and adaptive leaders—leaders of character, competence and commitment—who are willing to accept prudent risks to accomplish the mission. This publication addresses the significant changes in Army doctrinal terminology, constructs and proven tactics, techniques, and procedures.