This United States Army manual, Soldier Training Publication STP 21-1-SMCT Soldier’s Manual of Common Tasks Warrior Skills Level 1 September 2017, is one of a series of soldier training publications (STPs) that support individual training. Commanders, trainers, and Soldiers will use this manual and STP 21-24-SMCT to plan, conduct, sustain, and evaluate individual training of warrior tasks and battle drills in units. This manual includes the Army Warrior Training plan for warrior skills level (SL) 1 and task summaries for SL 1 critical common tasks that support unit wartime missions. This manual is the only authorized source for these common tasks. Task summaries in this manual supersede any common tasks appearing in military occupational specialty (MOS)-specific Soldier manuals. Training support information, such as reference materials, is also included. Trainers and first-line supervisors will ensure that SL 1 Soldiers have access to this publication in their work areas, unit learning centers, and unit libraries. This manual applies to the Active Army, the Army National Guard/Army National Guard of the United States, and the U.S. Army Reserve unless otherwise stated.