Center for Army Lessons Learned

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  • COL Scott W. Mueller
    Director, Center for Army Lessons Learned
    COL Scott W. Mueller

Organization Information

  • Colonel Scott W. Mueller

    Director, Center for Army Lessons Learned

    COL Scott Mueller is a native of Glenview, Illinois and was commissioned as an Armor Officer upon graduation from the United States Military Academy in 1994. His troop assignments include: tank platoon leader and executive officer, D/1-34 Armor, Fort Riley, Kansas (1994-1997); commander, C/2-63 Armor, Vilseck, Germany (2000-2002); Military Transition Team Chief to the 19th Iraqi Army Brigade, Baqubah, Iraq (2007-2008); squadron executive officer, 2-1 CAV, 4th Stryker Brigade Combat Team, 2nd Infantry Division (2008-2010), Fort Lewis, Washington and Iraq; commander, 1-15 Infantry, 3rd Brigade, 3rd Infantry Division, Fort Benning, Georgia (2013-2015); and commander, U.S. Army Garrison Camp Humphreys, Korea (2017-2019).

    Between troop assignments COL Mueller served as an advisor to E/145 Cavalry (Oklahoma Army National Guard) from 2002-2004, followed by an assignment to the Battle Command Training Program’s World Class Opposing Force at Fort Leavenworth, Kansas from 2004-2006. After serving as a squadron executive officer, he returned to Fort Leavenworth where he was an instructor at the Command and General Staff College. After battalion command, COL Mueller served as the executive officer to the Commanding General, Combined Joint Task Force-Operation Inherent Resolve from 2015-2016. He most recently served as the Deputy Chief of Staff at U.S. European Command in Stuttgart, Germany (2019-2021). COL Mueller’s Operational deployments include Task Force Hawk (April-July 1999), Albania, Operation Iraqi Freedom (2007-2008, 2009-2010), Operation Enduring Freedom (2012), and Operation Inherent Resolve (2015-2016).

    COL Mueller is a graduate of the Armor Officer Basic and Advanced Courses, the Combined Arms Services Staff School, the Command and General Staff College, and is a Distinguished Graduate of the U.S. Army War College. He holds a Bachelor of Science in European History from USMA, a Master of Arts degree in Management from Webster University and a Master of Strategic Studies from the U.S. Army War College.

  • CALL drives Army change through leading the Army Lessons Learned Program (ALLP) and delivering timely and relevant information to resolve gaps, enhance readiness, and inform modernization. To accomplish this CALL, executes the Army Annual Plan collecting, analyzing, disseminating, integrating, and archiving lessons learned from tactical to theater/strategic levels. CALL researches root-cause analysis, defines trends/themes, coordinates with the lessons learned community of interest, and initiates product development. CALL's multimedia-based products are disseminated through a variety of print and electronic formats, with the web-based Joint Lessons Learned Information System (JLLIS) serving as the central repository. As emerging issues are discovered, CALL incorporates those into the Army Lessons Learned Forum, to facilitate continuous development, improvement, and adaptation of material and non-material solutions across the DOTMLPF-P spectrum. CALL modernization, and interoperability activities support sister services, international, and interagency bilateral staff talks, mil-to-mil engagements, and agreed-to-actions. This holistic approach to lessons learned drives Army change and fosters Army readiness.

  • The Center for Army Lessons Learned leads the Army Lessons Learned Program and delivers timely and relevant information to resolve gaps, enhance readiness, and inform modernization.

  • The Center for Army Lessons Learned is the Army's daily focal point for adaptive learning based on lessons and best practices from the total force and provides timely and relevant knowledge to the warfighter and our unified action partners utilizing integrated systems and interactive technology in order to simplify winning in a complex world.

Request for Publications

To deliver products to the total force, CALL rescinded the requirement that publications must be shipped to a military address. Depending on the shipping location, deliveries may take up to seven days after receiving your emailed shipping notification from ATSC.

Place an order HERE (CAC Login Required)

Writing for CALL

Do you have a best practice or story to share with the Army and need assistance getting started? CALL has the resources to get you on the right path to getting published. Your publication could be on the next CALL top-10 list!

Visit our restricted site (CAC Required), Writing for CALL for more information and submission guidelines.



Audiobooks offer an immersive and convenient way to enjoy our publications, allowing you to listen while on the go or during daily activities. Audiobooks bring concepts to life and provide a unique audio experience. Explore our audiobook collection and let the power of storytelling accompany you wherever you are.

18-24 The First 100 Days of Platoon Leadership

22-04 The First 100 Days of Company Leadership

21-14 Building Cohesive Teams

19-18 Commander and Staff Guide to Rehearsals

21-06 Preparing for Large-Scale Combat Operations

20-06 How to Master Wargaming


The Center for Army Lessons Learned (CALL) no longer offers a formal Army Lessons Learned Course (ALLC). Organizations subject to Accreditation Standards will complete the Joint Lessons Learned Program course (P-US1181) on Joint Knowledge Online for a formal certificate. Additionally, organizations will review the Army Lessons Learned Course (ALLC) program of instruction slides to satisfy training and accreditation requirements per AR 11-33, chapters 4 and 5.

BLUF: No change to any TRADOC or CAC CAO Lessons Learned Accreditation requirements. Organization Lesson Managers and JLLIS Administrators must complete the JKO Lessons Learned Training and be appointed in writing by their Commander or Director. (See AR 11-33 and DA Pam 11-33 for training requirements and memorandum format).

Starting in FY24, CALL will offer a quarterly Army lesson learned program seminar for Army organizations to ask questions, share best practices, and discuss issues related to their Army lessons learned program and DA Pam 11-33. Please send an email to the points of contact below to register for the forum and obtain A365 teams link and times. The FY24 forum schedule is 14 December 2023, 14 March 2024, 20 June 2024, and 12 September 2024.

The FY24 forum schedule is 14 December 2023, 14 March 2024, 20 June 2024, and 12 September 2024.

Army Regulation 11-33, Army Lessons Learned Program, is the authoritative source for a commander or director to appoint an Organization Lesson Manager (OLM) and Joint Lessons Learned Information System (JLLIS) administrator. Department of the Army Pamphlet 11-33 is the authoritative source on how to establish and maintain a lessons learned program. Commanders or directors will certify their OLM and JLLIS administrator or other lessons learned personnel by appointment memorandum format found in DA Pam 11-33, paragraph B-3.

Army organizations can contact Mr. Steve Humes at or Mr. “Hike” Welling at for assistance with their lessons learned program or registering for the quarterly lessons learned forum.

Military Analyst (Forward) Program (MAF)

This is your opportunity to become an Agent of Change! CALL is offering the opportunity to serve in an Active Duty Corps headquarters in CONUS, SETAF-AF and USARCENT as a Military Analyst (forward) (MAF) (MIL [O4-O6, and E8-E9]). Please review the qualifications and submit an application through the CALL Restricted Site (CAC Required).


Request for Information

  • DSN 552-9533
  • Commercial (913) 684-9533

Information about CALL

  • DSN 552-CALL / 552-3035
  • Commercial 913-684-CALL / 913-684-3035


  • DSN 552-4387
  • Commercial (913) 684-4387


Center for Army Lessons Learned
10 Meade Ave. Building 50
Ft. Leavenworth, KS 66027