- ATP 3-21.8Publication
Infantry Rifle Platoon and Squad
ATP 3-21.8 is the techniques manual for the Infantry rifle platoon and squad across Infantry, Stryker, and armored brigade combat teams. It carries battle drills, movement formations, and the offensive and defensive tasks small units actually execute. The posted file is the January 2024 edition incorporating change 1, dated June 2025.
- STP 21-1-SMCTPublication
Soldier's Manual of Common Tasks, Warrior Skills, Level 1
STP 21-1-SMCT holds the task summaries for skill level 1 common tasks -- the conditions, standards, and performance steps trainers use to certify a Soldier. It is what a squad leader trains and evaluates against. Higher skill levels are covered in the STP 21-24 series.
- Acronym
WTBD
Warrior Tasks and Battle Drills