Places of the war
Mudros in the First World War
A bay on the Greek island of Lemnos, in 1915 the base of the Gallipoli expedition and its hospitals. On 30 October 1918 Turkey signed an armistice here.
- Type:
- Waters
- In 1914:
- Greece
- Today:
- Greece
- Author:
- Natalia
- Updated:
- 31 October 2026
Mudros is a large bay on the Greek island of Lemnos, in the northern Aegean Sea, about 50 kilometres from the mouth of the Dardanelles. In 1915 it became the base of the fleet and the troops who attacked the strait and fought on the Gallipoli peninsula, and camps and hospitals sprang up on its shores. British warships were stationed here until the end of the war. On 30 October 1918, aboard a battleship anchored in Mudros harbour, the Ottoman Empire signed the armistice by which it left the war.
A disputed island (1912–1915)
The Greek navy took Lemnos on 8 October 1912, during the First Balkan War. In February 1914 the great powers awarded the island to Greece, but Turkey never recognised the decision. When the war broke out, Greece was neutral. In August 1914 the Russian minister Sergei Sazonov was ready to give Lemnos to the Turks in return for their neutrality, but the British Foreign Secretary, Edward Grey, refused, because the island lay right at the entrance to the straits.
Half a year later the British needed it themselves. The prime minister, Eleftherios Venizelos, who was well disposed towards the Entente, withdrew the Greek garrison from the island, and on 23 February 1915 battalions of British marines arrived in Mudros bay. Athens demanded an explanation, and London replied that, being at war with Turkey, it could treat the island as Turkish territory. On 20 March, however, it guaranteed Greece that after the war Turkey would renounce Lemnos in its favour.
The expedition’s port (1915)
The bay could hold a whole fleet, but it had no quays, warehouses or water. The task of building the base was given to Rear-Admiral Rosslyn Wemyss. Until water was piped in from the hills, the island could support at most 10,000 men. In March an Australian brigade, the Royal Naval Division and a French division arrived here, but at the end of the month the French and part of the British moved to Egypt.
After the failed naval attack of 18 March the bay became the concentration point before the landing. By mid-April dozens of warships and more than a hundred transports and merchant ships lay there, and the Australians practised on the water climbing into boats and landing. From here General Ian Hamilton’s army set out, and on 25 April it landed at Gallipoli.
After the German submarine U-21 sank two battleships in May, Admiral de Robeck sheltered most of his heavy ships in Mudros. Short of water, Lemnos was unsuitable as a large base, so the island of Imbros, closer to the peninsula, became the army’s main base. Mudros remained the rear base, with reinforcement camps, depots and hospitals.
Hospitals
From March and June 1915 two Australian stationary hospitals worked on Lemnos, in August the 3rd Australian General Hospital was added, and alongside them there were Canadian and British hospitals. They stood on both sides of the bay. Patients and staff lived in tents, in the summer heat and the winter wind.
The August offensive brought especially heavy work: in the two months to October 57,000 sick and 37,000 wounded were brought here from Gallipoli. According to an Australian committee commemorating Lemnos, by October 1915 there were about 9,000 beds on the island.
In early September 1915 Hamilton visited the hospitals in West Mudros. He wrote in his diary that the Australian and Canadian nurses were the first white women he had seen for half a year. The dead were buried in cemeteries at Portianos and Mudros. The East Mudros cemetery, begun in April 1915, holds 885 graves of soldiers of the British Empire.
A base until the end of the war
In early October 1915 the first ships carrying troops meant to help Serbia sailed from Mudros for Salonika. In November Lord Kitchener came here to decide on the spot the fate of Gallipoli. After the evacuation of the peninsula the hospitals left the island, and in January 1916 the headquarters moved to Egypt.
The port remained the base of the British squadron in the Aegean. In April 1916 aircraft from Mudros bombed Constantinople, and hospital ships took sick men from other fronts from here. In January 1918 the Goeben and the Breslau were to shell the base after their sortie off Imbros, but they ran onto mines.
The armistice
On 11 October 1918 the British Vice-Admiral Somerset Gough-Calthorpe arrived at Mudros, and on 26 October the Turkish delegates, led by the navy minister Rauf Bey. The talks were held aboard the battleship Agamemnon, and on 30 October at 9.40 p.m. the armistice was signed. Fighting on the Ottoman fronts stopped at noon on 31 October, and the Allied fleet sailed through the Dardanelles to Constantinople. The status of Lemnos was finally settled by the Treaty of Lausanne of 1923: Turkey recognised Greek sovereignty over the island, which was to remain demilitarised.
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Battles here and nearby
(04)- 19 February 1915 – 9 January 1916Gallipoli campaignFrom February 1915 to January 1916 the Entente tried to take the Dardanelles, first by sea, then by landing on Gallipoli. It ended in defeat and evacuation.
- 25–26 April 1915Landing at GallipoliOn 25–26 April 1915 the Allies landed on the Gallipoli peninsula and at Kum Kale. They won two bridgeheads but none of their first-day objectives.
- 6–15 August 1915Landing at Suvla BayOn 6–15 August 1915 IX Corps landed at Suvla Bay almost unopposed, but stood still for two days. The Turks had time to man the surrounding hills.
- 20 January 1918Battle of ImbrosOn 20 January 1918 Goeben and Breslau sank two British monitors off Imbros but ran into a minefield. Breslau sank and Goeben ran aground.
In the chronicle
(41)1915
- 16 February 1915A British division for the Dardanelles
- 20 February 1915Australians and New Zealanders for the Dardanelles
- 23 February 1915British occupy Lemnos
- 7 March 1915Greece asks about the occupation of Lemnos
- 9 March 1915British reply on Lemnos
- 15 March 1915British squadron leaves Smyrna
- 17 March 1915Hamilton takes command at the Dardanelles
- 20 March 1915Britain promises Lemnos to Greece
- 23 March 1915HMS Manica, the first balloon ship
- 7 April 1915Indian Expeditionary Force G sails for the Dardanelles
- 25 May 1915Sinking of the battleship Triumph
- 26 May 1915British squadron assembles at Malta
- 27 May 1915Sinking of the battleship Majestic
- 27 May 1915Churchill leaves the Admiralty
- 2 June 1915British blockade of the coast of Asia Minor
- 13 August 1915Sinking of the troopship Royal Edward
- 27 September 1915Constantine agrees to the Salonika expedition
- 28 September 1915Greece rejects the offer of Entente troops
- 2 October 1915Venizelos asks for an Allied landing at Salonika
- 3 October 1915First Entente troops sail for Salonika
- 5 October 1915Entente landing at Salonika
- 28 October 1915Charles Monro takes command at Gallipoli
- 4 November 1915Kitchener leaves for the Dardanelles
- 10 November 1915Kitchener arrives at the Dardanelles
- 25 November 1915Monro becomes commander-in-chief in the Mediterranean
- 8 December 1915Order to evacuate Suvla and Anzac
- 19 December 1915Start of the evacuation of Suvla and Anzac
- 28 December 1915Order to evacuate Cape Helles
- 31 December 1915Indian troops leave the Dardanelles
1916
- 7 January 1916Start of the evacuation of Cape Helles
- 8 January 1916End of the evacuation of Gallipoli
- 9 January 1916Monro and Birdwood give up their commands
- 16 January 1916Sarrail takes command of all Entente troops at Salonika
- 14 April 1916British air raid on Constantinople and Adrianople
- 27 April 1916Sinking of the battleship Russell
- 21 November 1916Sinking of the hospital ship Britannic