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In page European Coal and Steel Community:

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Far more important than creating Europe's first social and regional policy, Robert Schuman argued that the ECSC introduced European peace.[4] It involved the continent's first European tax. This was a flat tax, a levy on production with a maximum rate of one percent. Given that the European Community countries are now experiencing the longest period of peace in more than seventy years,[5] this has been described as the cheapest tax for peace in history.[citation needed] Another world war, or "world suicide" as Schuman called this threat in 1949, was avoided.[citation needed]