SPD in the Weimar Republic. https://m.youtube.com/playlist?list=PLFdL4svwk75eA-5sDo0t7OXUd69Wtb5vc
AFL-CIO & the US labor during the Cold War. https://www.hamiltonnolan.com/p/the-sordid-history-of-organized-labors
The entire operation Gladio. https://en.wikipedia.org/wiki/Operation_Gladio