R 201220Z APR 26 MARADMIN 179/26 MSGID/GENADMIN/CMC WASHINGTON DC// SUBJ/CHANGE IN UNIFORM FOR SPEAKERS PARTICIPATING IN  MODERN DAY MARINE 2026// POC/N.C. MANNWEILER/LTCOL/COMMUNICATION DIRECTORATE/EMAIL: [email protected]// REF/A/MSGID/23JAN26// NARR/REF A IS MARADMIN 027/26, CALL FOR PARTICIPATION  IN MODERN DAY MARINE 2026//  GENTEXT/REMARKS/1.  Reference (a) is the call for  participation in Modern Day Marine (MDM) and listed  uniform requirements for participants and speakers. This  MARADMIN directs a change in uniform for speaker  participation from Service "A" to Service "C."  2.  Release authorized by Lieutenant General Paul J. Rock Jr.,  Director, Marine Corps Staff.//