Capt. Peter Martin receives his retirement flag after transferring command of Sector Houston-Galveston to Capt. Kevin Oditt, during a change-of-command and retirement ceremony at San Jacinto College in Houston, Apr. 24, 2017. The change-of-command ceremony is a time-honored, military tradition that conveys to officers and enlisted personnel that although the authority of command is relinquished by one person and assumed by another, it is still maintained without interruption. U.S. Coast Guard photo by Petty Officer 3rd Class Dustin R. Williams