Brown played a prominent role in Western Europe and Africa during the Cold War in splintering communist-led labor movements.
Along with expelled former Communist Party of the USA member Jay Lovestone, he founded the American Institute for Free Labor Development in 1962.
[5] As a lieutenant of the US Army, he helped the Office of Strategic Services (OSS) plan the invasion of Sicily and the landing in the south in Provence.
[3][8] On June 26, 1950, Brown was part of the American delegation at the founding meeting of the Congress for Cultural Freedom in Berlin.
[4] Established in France, he headed the international relations of the AFL-CIO from his offices at 10, rue de la Paix, in Paris.
From 1951 to 1954, the CIA division, headed by Thomas Braden, provided $1 million a year to Brown and Lovestone ($1,600,000 in 1954).