Following their service during World War II, all Michigan National Guard units remaining in Federal service were officially deactivated by the Army. Officers and men returned to their homes as individuals rather than in units.
The Michigan National Guard was again required to undertake post-war re-establishment and organization from scratch. The Governor officially accepted the troop allotment assigned to Michigan by the National Defense Authority on May 31, 1946. The allotment called for 228 troop units (including 16 Air National Guard units) to be manned by 24,795 officers and men. This strength was not attained, however, because the War Department immediately began to scale down its plans.
Insofar as possible, units were allotted to Michigan communities that had previously sponsored National Guard units and where state-owned or leased armory facilities were available. Initial priority was given to the organization of the State Headquarters, the 46th Infantry Division, and Air National Guard units.
On September 29, 1946, the first post-war units of the Michigan National Guard were activated. Intense organizational efforts continued for the next two years. On June 30, 1948, the Adjutant General reported to the Governor that 94 percent of the first priority units had been organized and federally recognized. A total of 121 units (including 15 Air Guard units) had been organized in 40 communities with a strength of 8,818 officers and enlisted—the greatest strength to date in Michigan history.