A blue beret is a blue-colored beret used by various (usually special) military and other organizations, notably the United Nations peacekeepers who are sometimes referred to as the Blue Berets.
References
Blue beret Wikipedia(Text) CC BY-SA
A blue beret is a blue-colored beret used by various (usually special) military and other organizations, notably the United Nations peacekeepers who are sometimes referred to as the Blue Berets.