The military district included Stockholm, Uppsala, Södermanland, Östergötland, Värmland, Örebro, Västmanland, Dalarna and Gävleborg counties.

The defence act meant that Västmanlandsgruppen and Värmlandsgruppen were disbanded on 30 June 2005, and its tasks were taken over on 1 July 2005 by Livregementets grenadjärgrupp and Upplandsgruppen, respectively.

[5] Prior to the defence act, the Swedish Armed Forces had proposed three alternatives to a changed military district organization.

The third course of action was to disband the military district organization, and to transfer responsibility for territorial operations to the Joint Forces Command (OPIL).

[5] On 2 June 2005, the Swedish government presented its bill (2004/05:160) regarding the disbanding of the military district organization.

In its place, four Security and Cooperation Sections would be established, located in Boden, Stockholm, Gothenburg and Malmö.

The tasks of the military district staffs regarding collaboration with county administrative boards, municipalities, rescue services and other community bodies was proposed to be taken over by newly established so-called Security and Cooperation Sections in Malmö (Revingeby), Gothenburg, Stockholm and Boden.

A smaller decommissioning force at the military district staff was established during the period 1 January-30 June 2006.

A new organization was adopted on 1 July 2005, when the military district groups in Karlstad and Västerås were disbanded on 30 June 2005.

Blazon: "Or, the provincial badge of Södermanland, a griffon segreant sable, armed and langued gules, on a chief azur three open crowns fesswise or.

[11] In 2003, the Mellersta militärdistriktets (MD M) förtjänstmedalj ("Central Military District Medal of Merit") in gold and silver (MDMGM/SM) of the 8th size was established.

[12] In 2005, the Mellersta militärdistriktets (MD M) minnesmedalj ("Central Military District Commemorative Medal") in silver (MDMMSM) of the 8th size was established.