Category:Treaties entered into force in 1956

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This category is for treaties that entered into legal force in the year 1956. For treaties that were written and opened for signature in 1956, see Category:Treaties concluded in 1956.

Treaties by year of entry into force: 1951 - 1952 - 1953 - 1954 - 1955 - 1956 - 1957 - 1958 - 1959 - 1960 - 1961