On 29 October "Yavuz" bombarded Sevastopol in her first operation against Imperial Russia, though the Ottoman Empire was not yet at war with the Entente; Souchon conducted the operation to force Turkey into the war on the side of Germany. A shell struck the ship in the after funnel, but it failed to detonate and did negligible damage. Two other hits inflicted minor damage. The ship and her escorts passed through an inactive Russian minefield during the bombardment. As she returned to Turkish waters, "Yavuz" came across the Russian minelayer which scuttled herself with 700 mines on board. During the engagement the escorting Russian destroyer was damaged by two of "Yavuz"s secondary battery shells. In response to the bombardment, Russia declared war on 1 November, thus forcing the Ottomans into the wider world war. France and Great Britain bombarded the Turkish fortresses guarding the Dardanelles on 3 November and formally declared war two days later. From this engagement, the Russians drew the conclusion that the entire Black Sea Fleet would have to remain consolidated so it could not be defeated in detail (one ship at a time) by "Yavuz".