Human beings immerse in the universe where the sky was believed to be round and the earth square. The shapes of square and round symbolize the earth and sky respectively. When put together, they have the connotations of proficiency and precision which conform to the spirit of contemporary military. The 24 icons stand for the 24 solar terms and the 24 hours of a day, echoing the vigorous slogans of the cooperation command: voluntariness, service, morale and swiftness. Conveying the harmony of right time, right place and right people, the artwork at the gate suggests that all missions will be successfully completed.