Short Answer
Historical Context
Following the fall of France in 1940, the British government recognized the need for a specialized organization to wage a secret war against the Axis powers. On July 16, 1940, Prime Minister Winston Churchill appointed Hugh Dalton as the political master of the newly formed Special Operations Executive (SOE) and famously ordered the organization to “set Europe ablaze!” [3]. The SOE’s mission was to coordinate all action involving subversion and sabotage against the enemy overseas, fostering revolt and guerrilla warfare in occupied countries [1, 3].
To manage these high-risk operations, the SOE required a secure infrastructure within London. This infrastructure had to facilitate the recruitment and training of agents, the planning of clandestine insertions, and the coordination of resistance networks across multiple continents [1, 5].
The World Headquarters: 64 Baker Street
From 1940 to 1946, 64 Baker Street served as the world headquarters of the Special Operations Executive [2]. This location acted as the central hub for the organization’s global activities, overseeing the deployment of agents and the management of espionage and sabotage efforts [2].
The headquarters was the base for senior leadership, including Brigadier (later Major-General) Colin Gubbins, who headed the SOE from 1943 and was known by the initial “M” [2]. The administrative operations at 64 Baker Street were supported by a dedicated staff, including personal assistants such as Margaret Jackson MBE, who served Gubbins during the conflict [2].
The Baker Street Infrastructure and Country Sections
While 64 Baker Street was the primary world headquarters, the SOE’s presence in the Baker Street area was far more extensive. The organization utilized multiple properties to house its various “Country Sections,” which were the administrative bodies responsible for specific geographic regions [4].
Because these offices were clandestine, many remained unmarked and their wartime use was largely forgotten by the general public. For example, 83 Baker Street served as the headquarters for the French Section (F Section), which coordinated one of the SOE’s most active and dangerous theaters of operation [4]. This decentralized approach allowed the SOE to separate the administrative functions of different national sections while remaining within a concentrated area of London [4].
Wartime Function and Personnel
The London headquarters functioned as the brain of the “underground army,” managing a workforce that eventually grew to more than 13,000 people, including approximately 3,200 women [5]. The headquarters coordinated the flow of intelligence from agents behind enemy lines and managed the complex logistics of sabotage—such as the destruction of trains, bridges, and factories [3].
The personnel based in London were responsible for the “007 factor”—the selection, vetting, and briefing of agents before they were sent to specialized training schools and subsequently dropped or shipped into occupied territories [3].
Legacy and Present Day
The Special Operations Executive was dissolved in 1946 [5]. In the decades following the war, the physical remnants of the SOE’s London infrastructure have largely disappeared. At 64 Baker Street, nothing remains of the wartime interior, and the building has been subject to redevelopment plans as of 2025 [2].
Recognition of the site’s importance came later; a plaque was unveiled at 64 Baker Street in May 2010 to commemorate its role as the SOE headquarters [2]. Other memorials to the SOE’s broader efforts can be found at Westminster Abbey, the Albert Embankment in London, and the Valençay and Tempsford memorials [5].
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