The Young Turk government had signed a secret treaty with Germany and established the Ottoman-German Alliance in August 1914, aimed against the common Russian enemy but aligning the Empire with the German side. The Ottoman Empire entered World War I after the "Goeben" and "Breslau" incident, in which it gave safe harbour to two German ships that were fleeing British ships. These ships then—after having officially been transferred to the Ottoman Navy, but effectively still under German control—attacked the Russian port of Sevastopol, thus dragging the Empire into the war on the side of the Central Powers, in which it took part in the Middle Eastern theatre. There were several important Ottoman victories in the early years of the war, such as the Battle of Gallipoli and the Siege of Kut, but there were setbacks as well, such as the disastrous Caucasus Campaign against the Russians. The United States never declared war against the Ottoman Empire.