NATO Day
Next Date
April 4th, 2026
NATO Day
The NATO Day is a day commemorating the founding of NATO by the signing of the North Atlantic Treaty on 4 April 1949. It is celebrated in all Allied countries, including, but not limited to, North Macedonia and marked on the first Sunday of April in Romania. However, in Lithuania it is celebrated on 29 March, in honor of its accession to NATO in 2004.
Source: Wikipedia NATO_Day
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