1Marine Corps Techniques Publication MCTP 6-10A (Formerly MCRP 6-11D) Sustaining the Transformation 2 May 2016. Since our 31st Commandant, General Charles C. Krulak, first published Marine Corps Reference Publication 6-11D, Sustaining the Transformation, in 1999, the Marine Corps has continued our proud tradition of making Marines, winning battles, and returning quality citizens to society. Like all previous generations, Marines today are equally as committed to our time-honored values of honor, courage, and commitment. Marines of the 21st century areamong the finest we have ever forged; it is every Marine's duty to sustain that rich legacy. America trusts its Corps of Marines-we must always strive to preserve that trust.The Marine transformation is forever ingrained in our DNA, from recruit training to Officer Candidates School and throughout the rest of our lives. The transformation to becoming a Marine is often the defining moment in a person's life. All Marines must possess a clear understanding that our Eagle, Globe and Anchor is much more than an emblem, rather that earning the title"Marine" carries a life-long responsibility to defend our nation, to care for our fellow Marine, and to keep our honor clean. This publication is focused on one of our key leadership principles: know your Marines and look out for their welfare. It is a companion to Marine Corps Warfighting Publication 6-11, Leading Marines, and provides more detail to leaders about how to takecare of their Marines through the five phases of the transformation process. It is a leadership tool that provides sound examples and methods for success. Sustaining a Marine through this process requires engaged leadership. I encourage you to use this reference as a starting point for discussions amongst peers, subordinates, and seniors. Your dialogue and application will improve the welfare of all Marines and our institution.Sustaining our transformation is not a new concept; it has endured for over 230 years. The saying, "Once a Marine, Always a Marine" holds true because our transformations have been strengthened throughout our lives. We witness the health of our traditions and legacy in the proud smile of a new private graduating boot camp, or in the hearty handshake and greeting of two seasoned warriors. The Marine Corps family is alive and well, as is our rich heritage. I remain, Semper Fidelis...