The following month, the naval high command began an operation in the Gulf of Riga to support the Gorlice–Tarnów Offensive that the Army was waging. The Baltic naval forces were reinforced with significant elements of the High Seas Fleet, including I Battle Squadron, I Scouting Group, II Scouting Group, and II Torpedo-boat Flotilla. Prince Heinrich planned that Schmidt's ships would force their way into the Gulf and destroy the Russian warships at Riga, while the heavy units of the High Seas Fleet would patrol to the north to prevent interference by the main Russian Baltic Fleet. The Germans launched their attack on 8 August, initiating the Battle of the Gulf of Riga. Minesweepers attempted to clear a path through the Irbe Strait, covered by "Braunschweig" and "Elsass", while "Wettin" and the rest of the squadron remained outside the strait. The Russian battleship attacked the Germans in the strait, forcing them to withdraw.