What is primarily symbolized by the blue helmet or beret worn by peacekeepers?

The blue helmet or beret worn by UN peacekeepers primarily symbolizes their identification as UN peacekeepers. This distinctive headgear serves to visually represent the United Nations' commitment to maintaining peace and security around the globe. The blue color is often associated with peace and tranquility, showcasing the peacekeepers' role in preventing conflict and fostering stability in areas affected by violence or unrest. It helps to establish a clear and recognizable presence in the regions where they are deployed, emphasizing their neutrality and commitment to international peace efforts.

The other options, while related to military or organizational structure, do not capture the essence of the blue headgear's role in signaling the global peacekeeping mission of the United Nations.