 "Regensburg" served in the reconnaissance forces of the High Seas Fleet during World War I.She saw significant action at the Battle of Jutland on 31 May – 1 June 1916, where she served as the leader of the torpedo boat flotillas that screened for the I Scouting Group battlecruisers.After the end of the war, she was ceded to France in 1920 and renamed "Strasbourg".