Discover what the Basic Officer Leadership Course (BOLC) is and what it involves. Learn about training phases, requirements, and career preparation.
Written by Laura Bouttell • Sat 10th January 2026
The Basic Officer Leadership Course (BOLC) is a two-phased training programme designed to commission officers and prepare them for service in the United States Army—combining initial leadership development and small unit tactics with branch-specific technical training that transforms candidates into combat-effective commissioned officers ready for their wartime duties. Understanding BOLC is essential for anyone considering or entering the officer commissioning pathway.
Every commissioned officer in the United States Army passes through BOLC. Whether entering through West Point, ROTC, or Officer Candidate School, this foundational training shapes how officers lead soldiers, execute missions, and uphold the Army's standards. The course represents one of the most rigorous officer development programmes in the world's military forces.
This guide examines what BOLC involves, its phases and requirements, and what participants can expect throughout this transformative experience.
The course follows a deliberate progression.
"Basic Officer Leader Course (BOLC) helps you physically and mentally prepare to lead effective, successful missions as a commissioned Army Officer."
Programme definition:
BOLC operates across distinct developmental phases:
| Phase | Name | Focus | Timing |
|---|---|---|---|
| Phase I | BOLC A | Basic leadership and tactics | Pre-commissioning |
| Phase II | BOLC B | Branch-specific training | Post-commissioning |
"Phase II, previously referred to as the Officer Basic Course (OBC) and BOLC III, is designed to develop new combat-effective officers."
Programme development:
Initial officer development begins here.
"Prospective officers complete Phase I as either a cadet (United States Military Academy or Reserve Officers' Training Corps) or an officer candidate (Officer Candidate School)."
Phase I elements:
Different commissioning sources deliver Phase I:
| Source | Location | Duration |
|---|---|---|
| West Point | United States Military Academy | 4 years (integrated) |
| ROTC | Various universities | 4 years (integrated) |
| OCS | Fort Benning, Georgia | 12 weeks |
"Direct commissioned officers (primarily medical/dental, legal and chaplains) not from a pre-commission training source must attend the Direct Commission Course (DCC) in place of BOLC A."
DCC specifics:
Branch-specific excellence development.
"Phase II is designed to develop new combat-effective officers and train them to perform their wartime duties as commissioned officers. It is during this phase that they learn the specifics of their branches, and the systems and equipment they will use in their duty unit."
BOLC B components:
Different branches train at specific installations:
| Branch | Location |
|---|---|
| Infantry/Armor | Fort Benning, Georgia |
| Chemical/Engineer/Military Police | Fort Leonard Wood, Missouri |
| Army Medical Department | Fort Sam Houston, Texas |
| Judge Advocate General | Charlottesville, Virginia |
| Field Artillery | Fort Sill, Oklahoma |
| Signal Corps | Fort Gordon, Georgia |
"Specialized training helps Officers discover and refine job-related skills in a branch-specific format that could take weeks or months depending on specialty."
Duration factors:
What officers actually learn.
"Officers in training become more capable and confident by learning combat and battlefield techniques required to operate in the field."
Combat training areas:
Core leadership competencies receive intensive focus:
Leadership elements:
"BOLC helps you physically and mentally prepare to lead effective, successful missions."
Preparation components:
| Dimension | Focus Areas |
|---|---|
| Physical | Fitness standards, endurance, combat readiness |
| Mental | Stress tolerance, problem-solving, resilience |
| Professional | Military bearing, standards, customs |
Clear expectations govern success.
"Students are required to take and pass the Army Combat Fitness Test (ACFT) AND meet the height and weight standards in order to graduate the course."
Fitness requirements:
Officers must demonstrate intellectual capability:
Academic elements:
"If BOLC B is not completed within two years of commissioning, 2LTs will be administratively separated from the service unless there are extenuating circumstances."
Timeline considerations:
Each branch tailors officer development.
Infantry, Armor, and other combat arms emphasise:
Combat arms focus:
Engineers, Signal, Military Police focus on:
Support branch elements:
Logistics, Medical, and administrative branches emphasise:
Service support training:
Daily experience shapes development.
Daily structure:
New officers experience:
Accommodation elements:
Fellow officers become crucial resources:
Peer development:
BOLC shapes entire careers.
BOLC provides:
Career foundation:
Subsequent career advancement builds on BOLC:
Progression pathway:
BOLC opens pathways for:
Future opportunities:
Preparation enhances success.
Fitness focus:
Knowledge preparation:
Logistical readiness:
The Basic Officer Leadership Course (BOLC) is a two-phased training programme that commissions and prepares officers for United States Army service. Phase I (BOLC A) covers basic leadership and small unit tactics pre-commissioning, whilst Phase II (BOLC B) provides branch-specific technical training post-commissioning to develop combat-effective officers.
BOLC duration varies by branch and phase. Phase I timing depends on commissioning source (4 years for West Point/ROTC, 12 weeks for OCS). Phase II ranges from weeks to months depending on branch complexity. Total BOLC B training can span several months for technical branches like Aviation or Medical.
BOLC consists of two phases: Phase I (BOLC A) occurs pre-commissioning and covers basic leadership skills and small unit tactics through West Point, ROTC, or OCS. Phase II (BOLC B) occurs post-commissioning and provides branch-specific training at designated locations based on officer specialty.
Officers who fail to complete BOLC B within two years of commissioning face administrative separation from the service unless extenuating circumstances apply. Failure of specific course elements may result in recycling, remediation, or in severe cases, separation proceedings depending on the nature and severity of deficiency.
BOLC training locations vary by branch. Infantry and Armor train at Fort Benning, Georgia. Chemical, Engineer, and Military Police train at Fort Leonard Wood, Missouri. Medical officers train at Fort Sam Houston, Texas. JAG officers train at Charlottesville, Virginia. Each branch has designated training installations.
The Direct Commission Course (DCC) replaces BOLC A for officers who enter service through direct commissioning rather than traditional pre-commissioning sources. This six-week course at Fort Benning or Fort Sill provides basic military training to professionals (medical, legal, chaplain) before they continue to their branch-specific BOLC B.
BOLC requires officers to pass the Army Combat Fitness Test (ACFT) and meet height and weight standards to graduate. Physical fitness is assessed throughout training, with standards varying somewhat by branch. Officers must maintain fitness throughout their careers, making BOLC fitness standards a baseline for service.