U.S. Coast Guard Rear Adm. David G. Throop addresses guests during the 13th district change-of-command ceremony held at Coast Guard Base Seattle, July 9, 2019. The change-of-command ceremony is a historic Coast Guard and Naval tradition, which has remained unchanged for centuries and includes the reading of the command orders in the presence of all unit crewmembers. U.S. Coast Guard photo by Petty Officer 2nd Class Ali Blackburn.