R 291355Z OCT 25
MARADMIN 509/25
MSGID/GENADMIN/CG EDCOM PRES MCU QUANTICO VA//
SUBJ/CHANGE 1 TO THE FISCAL YEAR 2026 CLASS DATES FOR CORNERSTONE//
REF/A/MSGID:MSG/CMC/191700Z AUG 25//
NARR/REF A IS MARADMIN 423/25, FISCAL YEAR 2026 CLASS DATES FOR 
CORNERSTONE: THE COMMANDANT’S COMBINED COMMANDERSHIP COURSE.//
POC/MAJ ADAM J. FRANKLIN/LEJEUNE LEADERSHIP INSTITUTE/MCU/TEL: COMM 
(703) 432-4675/EMAIL: LLI_MLD@USMCU.EDU//
POC/DR. DAVID WALKER/LEJEUNE LEADERSHIP INSTITUTE/MCU/TEL: COMM (703)
432-4684 /EMAIL: LLI_MLD@USMCU.EDU//
GENTEXT/REMARKS/
1.  This MARADMIN updates reference (a) to announce changes to the 
Fiscal Year 2026 Cornerstone schedule.
2.  Cornerstone 26-1 (previously scheduled for 15–24 October 2025) 
was cancelled due to a lapse in appropriations. To preserve 
throughout and ensure all selected commanders and command senior 
enlisted leaders can attend, an additional spring iteration 
Cornerstone 26-3, has been added to the FY26 schedule.
3.  Revised Course Dates:
3.A.  Cornerstone
3.A.1. O5-level Commanders and Sergeants Major:
Course          Report Date     Convene Date    Grad Date
2026002         17 Mar 26       18 Mar 26       27 Mar 26
2026003          5 May 26        6 May 26       15 May 26
3.A.2. O6-level Commanders and Sergeants Major:
Course          Report Date     Convene Date    Grad Date
2026002         22 Mar 26       23 Mar 26       27 Mar 26
2026003         10 May 26       11 May 26       15 May 26
3.B. Spouses Workshop
Course          Report Date     Convene Date    Grad Date
2026002         22 Mar 26       23 Mar 26       27 Mar 26
2026003         10 May 26       11 May 26       15 May 26
4.  Registration procedures, eligibility criteria, and administrative 
requirements remain as published in reference (a). Attendees 
previously assigned to 26-1 must complete the registration form at 
https://forms.office.com/r/kvk7Pq493Q to register for a future 
iteration. 
5.  Recruiting Station Commanding Officers may attend Cornerstone 
prior to assuming command if approved by their parent command. 
Attendance following assumption of command is not authorized.
6.  Questions regarding registration or eligibility should be directed 
to the MCU points of contact listed above. Questions regarding CSEL 
attendance should be directed to the 8999 Programs Lead, Marine Corps 
Senior Enlisted Academy, Sergeant Major Jacqueline Townsel, at 
Jacqueline.Townsel@usmcu.edu or (703) 432-3224.
7.  Release authorized by Brigadier General Matthew W. Tracy, 
Commanding General, Education Command and President, Marine Corps 
University//