Armed Forces Expeditionary Streamer. There are three expeditionary missions which use the Armed Forces Expeditionary ribbon to reflect campaign credit. The Armed Forces Expeditionary streamer is light blue with a narrow blue, white and red stripe in the center. On each edge is a narrow green, yellow, red, and black stripe. The colors red, white and blue refer to the United States while the light blue suggests water and overseas service. The stripes of brown, black, green and yellow are indicative of the various areas of the world where the Armed Forces of the United States might be called upon to serve.