events, First World War / WWI, propaganda, postcard "Einigkeit macht stark" (Unity is strength), Germany, 1914,

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Photo credit: © INTERFOTO / History / Alamy / Afripics
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Keywords: 1910s, 20th, alliance, arms, austria, austria-hungary, beginning, brothers, brothers--arms, central, century, dual, einigkeit, emperor, empire, events, franz, german, historic, historical, hungary, ii, joseph, length, macht, monarchy, people, postcard, postcards, powers, propaganda, stark, uniform, war, william, world, wwi