Updated Unit Numbering Policy
Years ago, when the Marine Strike Groups were put together, the MSG numbering system was based upon their Brigade. In the days when 90%+ of the members lived in the same area, it was an easy way to identify them as members within a common geographical region of the organization.
Things have changed since then. Today, membership of a unit can cross not only state lines but international borders, as well. The unit identity is now based upon members and activities, not where they reside. This makes geographic identification inaccurate, at best, and this practice has outlived its usefulness.
Going forward, when a new unit is formed, its unit number will continue to be based upon the Brigade it was formed in. Once that unit has been successfully created, the unit number belongs to that unit for as long as it is viable, regardless of where it may relocate. In this way, a unit can create its legacy without fear of losing its numerical identity due to a change of command or location.