Lowest rank: a trainee who’s starting Basic Combat Training (BCT). Primary role is to carry out orders issued to them to the best of his/her ability. (PVT does not have an insignia)
 

PV2s are promoted to this level after one year—or earlier by request of supervisor. Individual can begin BCT at this level with experience or prior military training. Carries out orders issued to them to the best of his/her ability.

Can manage other enlisted Soldiers of lower rank. Has served a minimum of two years and attended a specific training class to earn this promotion. People enlisting with a four year college degree can enter BCT as a Specialist.

The base of the Non-Commissioned Officer (NCO) ranks, CPLs serve as team leader of the smallest Army units. Like SGTs, they are responsible for individual training, personal appearance and cleanliness of Soldiers.

Typically commands a squad (9 to 10 Soldiers). Considered to have the greatest impact on Soldiers because SGTs oversee them in their daily tasks. In short, SGTs set an example and the standard for Privates to look up to, and live up to.

Also commands a squad (9 to 10 Soldiers). Often has one or more SGTs under their leadership. Responsible for developing, maintaining and utilizing the full range of his Soldiers' potential.

Key assistant and advisor to the platoon leader. Generally has 15 to 18 years of Army experience and puts it to use by making quick, accurate decisions in the best interests of the Soldiers and the country.

Principal NCO at the battalion level, and often higher. Not charged with all the leadership responsibilities of a 1SG, but expected to dispatch leadership and other duties with the same professionalism.

Principal NCO and life-blood of the company: the provider, disciplinarian and wise counselor. Instructs other SGTs, advises the Commander and helps train all enlisted Soldiers. Assists Officers at the company level (62 to 190 Soldiers).

SGMs experience and abilities are equal to that of the CSM, but the sphere of influence regarding leadership is generally limited to those directly under his charge. Assists Officers at the battalion level (300 to 1,000 Soldiers).

Functioning without supervision, a CSM’s counsel is expected to be calm, settled and accurate—with unflagging enthusiasm. Supplies recommendations to the commander and staff, and carries out policies and standards on the performance, training, appearance and conduct of enlisted personnel. Assists Officers at the brigade level (3,000 to 5,000 Soldiers).

There’s only one Sergeant Major of the Army. This rank is the epitome of what it means to be a Sergeant and oversees all Non-Commissioned Officers. Serves as the senior enlisted advisor and consultant to the Chief of Staff of the Army (a four-star General).

Typically the entry-level rank for most Commissioned Officers. Leads platoon-size elements consisting of the platoon SGT and two or more squads (16 to 44 Soldiers).

A seasoned lieutenant with 18 to 24 months service. Leads more specialized weapons platoons and indirect fire computation centers. As a senior Lieutenant, they are often selected to be the Executive Officer of a company-sized unit (110 to 140 personnel).

Commands and controls company-sized units (62 to 190 Soldiers), together with a principal NCO assistant. Instructs skills at service schools and combat training centers and is often a Staff Officer at the battalion level.

Serves as primary Staff Officer for brigade and task force command regarding personnel, logistical and operational missions.

Typically commands battalion-sized units (300 to 1,000 Soldiers), with a CSM as principal NCO assistant. May also be selected for brigade and task force Executive Officer.

Typically commands brigade-sized units (3,000 to 5,000 Soldiers), with a CSM as principal NCO assistant. Also found as the chief of divisional-level staff agencies.

Serves as Deputy Commander to the commanding general for Army divisions. Assists in overseeing the staff's planning and coordination of a mission.

Typically commands division-sized units (10,000 to 15,000 Soldiers).

Typically commands corps-sized units (20,000 to 45,000 Soldiers).

The senior level of Commissioned Officer typically has over 30 years of experience and service. Commands all operations that fall within their geographical area. The Chief of Staff of the Army is a four-star General.

This is only used in time of War where the Commanding Officer must be equal or of higher rank than those commanding armies from other nations. The last officers to hold this rank served during and immediately following WWII.

An officer appointed by warrant with the requisite authority pursuant to assignment level and position given by the Secretary of the Army. WO1s are basic level, technically and tactically focused officers who perform the primary duties of technical leader, trainer, operator, manager, maintainer, sustainer, and advisor. They also perform any other branch-related duties assigned to them. They also provide direction, guidance, resources, assistance, and supervision necessary for subordinates to perform their duties. WO1s have specific responsibility for accomplishing the missions and tasks assigned to them and, if assigned as a commander, the collective or organizational responsibility for how well their command performs its mission. WO1s primarily support levels of operations from team or detachment through battalion, requiring interaction with all soldier cohorts and primary staff. They provide leader development, mentorship, and counsel to enlisted soldiers and NCOs.

CW2s are commissioned officers with the requisite authority pursuant to assignment level and position as given by the President of the U.S.. CW2s are intermediate level technical and tactical experts who perform the primary duties of technical leader, trainer, operator, manager, maintainer, sustainer, and advisor. They also perform any other branch-related duties assigned to them. They provide direction, guidance, resources, assistance, and supervision necessary for subordinates to perform their duties. They have specific responsibility for accomplishing the missions and tasks assigned to them and, if assigned as a commander, the collective or organizational responsibility for how well their command performs its mission. CW2s primarily support levels of operations from team or detachment through battalion, requiring interaction with all soldier cohorts and primary staff. They provide leader development, mentorship, advice, and counsel to NCOs, other WOs and company-grade branch officers.

CW3s are commissioned officers with the requisite authority pursuant to assignment level and position as given by the President of the U.S.. CW3s are advanced-level technical and tactical experts who perform the primary duties of technical leader, trainer, operator, manager, maintainer, sustainer, integrator, and advisor. They also perform any other branch-related duties assigned to them. They provide direction, guidance, resources, assistance, and supervision necessary for subordinates to perform their duties. CW3s have specific responsibility for accomplishing the missions and tasks assigned to them and, if assigned as a commander, the collective or organizational responsibility for how well their command performs its mission. CW3s primarily support levels of operations from team or detachment through brigade, requiring interaction with all soldier cohorts and primary staff. They provide leader development, mentorship, advice, and counsel to NCOs, other WOs and branch officers. CW3s advise commanders on WO issues.

CW4s are commissioned officers with the requisite authority pursuant to assignment level and position as given by the President of the U.S.. CW4s are senior-level technical and tactical experts who perform the primary duties of technical leader, manager, maintainer, sustainer, integrator and advisor. They also perform any other branch-related duties assigned to them. They provide direction, guidance, resources, assistance, and supervision necessary for subordinates to perform their duties. CW4s have specific responsibility for accomplishing the missions and tasks assigned to them and, if assigned as a commander, the collective or organizational responsibility for how well their command performs its mission. They primarily support battalion, brigade, division, corps, and echelons above corps operations. They must interact with NCOs, other officers, primary staff, and special staff. CW4s primarily provide leader development, mentorship, advice, and counsel to NCOs, other WOs and branch officers. They have special mentorship responsibilities for other WOs and provide essential advice to commanders on WO issues.

CW5s are commissioned officers with the requisite authority pursuant to assignment level and position as given by the President of the U.S.. CW5s are master-level technical and tactical experts who perform the primary duties of technical leader, manager, integrator, advisor, or any other particular duty prescribed by branch. They provide direction, guidance, resources, assistance, and supervision necessary for subordinates to perform their duties. CW5s have specific responsibility for accomplishing the missions and tasks assigned to them. CW5s primarily support brigade, division, corps, echelons above corps, and major command operations. They must interact with NCOs, other officers, primary staff and special staff. They provide leader development, mentorship, advice, and counsel to WOs and branch officers. CW5s have special WO leadership and representation responsibilities within their respective commands. They provide essential advice to commanders on WO issues."