British business in Latin America struggled throughout the inter-war period, affected by the First World War, aggressive US trade strategies and a dated British commercial support structure that had turned its attentions to imperial markets. Chamber of Commerce archive material reveals the frustrations of the British business community in Chile as hard-won markets were lost to well-supported US firms and returning German competition, as a consequence of weak political, financial and marketing support. Against a backdrop of British commercial decline worldwide, the Chilean case echoes the experiences of businessmen across Latin America's non-imperial markets. As the British government dallied, US business established an unassailable position.