希腊于1917年对同盟国宣战,使土耳其不得不将部分注意力从黑海再转向地中海。苏顺已于1917年9月被召回德国,他的继任者感到有必要采取更具进攻性的战术。1918年1月,他率领“戈本”号和 Greece declared war on the allies in 1917, leaving Turkey to divert some of its attention from the Black Sea to the Mediterranean. Su Shun was called back to Germany in September 1917 and his successor felt the need for more aggressive tactics. In January 1918, he led the “Goben” and