Thomas Brown is an unknown figure of Scottish origin who played a significant role in the onset and development of both world wars in the first half of the 20th century. In the First World War he contributed to the Anglo-German conflict in the Middle East particularly in his switch from UK to German nationality in 1914 by contributing directly to the expansion of German imperialism in the Persian Gulf and Ottoman Empire. His most important role was in providing logistical support to German and Turkish forces in support of the Turkish jihad in November 1914. Despite his arrest by MI5 as a suspected traitor in 1919, he returned to Germany as a business middleman aided by former political and military colleagues in the Weimar Republic. After promoting German interests in Iran, he was able as a company director to represent German steel manufacturers who bought into the Anglo-Italian British Oil Development Company (BOD) in Iraq. He helped to obtain an oil concession from independent in Iraq in 1932, and used his skills as a negotiator with British, German and Arab speakers to promote a large oil strike and major expansion of the company in 1935.

It is here that the German-Italian axis comes to center-stage. Brown initially rejected Italian approaches to take over the company - exactly when Mussolini was trying to conquer Abyssinia - in favor of support for the UK investors, Lord Glenconner and Sir Percy Hunting. Brown was not fully aware of the maneuvering by the Hitler regime since autumn 1933 to promote alliances with Britain, Italy and Japan against the USSR and France, which ended in December 1935 with Hitler's preference for Italy. This was accelerated by Gestapo investigations into Italian involvement and Hitler's calculation that it would promote divisions among former allies and decrease German dependence on the world oil economy they dominated. Access to oil was key to military and political success. Brown belatedly understood that Britain was opposed to permitting Italy and Germany access to to key raw materials.

Brown reported directly to Berlin even though he was mistakenly identified as a 'Scottish Jew' but he failed to recognize that Hitler's support for Italy enabled access to Italian oil while maintaining domestic sources of fuel for rearmament of the army and air force. Brown was terminally ill by 1936 but had provided the template for a successful search by the German navy for access to oil, independent of the Anglo-American dominance of the world oil industry.