Naval operations in the Dardanelles campaign in the context of "Royal Australian Navy"

The 1915 Çanakkale Bridge (Turkish: 1915 Çanakkale Köprüsü) is a road suspension bridge in the province of Çanakkale in northwestern Turkey. Situated just south of the coastal towns of Lapseki and Gelibolu, the bridge spans the Dardanelles, about ten kilometres (six miles) south of the Sea of Marmara. The bridge is the longest suspension bridge in the world—with a main span of 2,023 m (2.023 km; 1.257 mi), the bridge surpasses the Akashi Kaikyo Bridge (1998) in Japan by 32 m (105 ft).

The bridge was officially opened by President Recep Tayyip Erdoğan on 18 March 2022 after roughly five years of construction. It is the centrepiece of the planned 321-kilometre-long (199 mi) US$2.8 billion O-6 motorway, which will connect the O-3 and O-7 motorways in East Thrace to the O-5 motorway in Anatolia. The year "1915" in the official Turkish name honours an important Ottoman victory in the Gallipoli campaign comprising an unsuccessful Entente naval attack followed by invasions of the Gallipoli peninsula by the forces of Australia, New Zealand, France, and Great Britain, on 25 April 1915 and a second in August; the Entente land forces failed to make significant progress and were evacuated at the end of that year.

The Armistice of Mudros (Turkish: Mondros Mütarekesi) ended hostilities in the Middle Eastern theatre between Ottoman Turkey and the Allies of World War I. It was signed on 30 October 1918 by the Ottoman Minister of Marine Affairs Rauf Bey and British Admiral Somerset Arthur Gough-Calthorpe, Commander-in-Chief of the British Mediterranean Fleet, on board HMS Agamemnon (1906) in Moudros harbor on the Greek island of Lemnos. It took effect at noon the next day. The table it was signed on is now on board HMS Belfast in London Bridge, though it is not accessible to the public.

Among its conditions, the Ottomans surrendered their remaining garrisons outside Anatolia, and granted the Allies the right to occupy forts controlling the Straits of the Dardanelles and the Bosporus and any Ottoman territory "in case of disorder" threatening their security. The Ottoman Army (including the Ottoman Air Force) was demobilized; and all ports, railways and other strategic points were made available for use by the Allies. In the Caucasus, the Ottomans had to retreat to within the pre-war borders between the Ottoman and the Russian Empires.