The flag of the United Nations was adopted on December 7, 1946, and consists of the official emblem of the United Nations in white on a blue background.Th
e emblem's design is described as:
A map of the world representing an azimuthal equidistant projection centred on the North Pole, inscribed in a wreath consisting of crossed conventionalized branches of the olive tree, . . . The projection of the map extends to 60 degrees south latitude, and includes five concentric circles.
— Official Seal and Emblem of the United Nations, Report of the Secretary-General, 15 October 1946
The olive branches are a symbol for peace, and the world map represents all the people and the countries of the world.
White and blue are the official colours of the United Nations.
Wikipedia contributors. (2018, December 2). Flag of the United Nations. In Wikipedia, The Free Encyclopedia. Retrieved 17:27, February 2, 2019, from https://en.wikipedia.org/w/index.php?title=Flag_of_the_United_Nations&oldid=871639186