Middle Eastern theatre of World War I in the context of "Gallipoli campaign"

World War I, or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a global conflict between two coalitions: the Allies (or Entente) and the Central Powers. Major areas of conflict included Europe and the Middle East, as well as parts of Africa and the Asia-Pacific. The war saw important developments in weaponry including tanks, aircraft, artillery, machine guns, and chemical weapons. One of the deadliest conflicts in history, it resulted in an estimated 30 million military casualties, and 8 million civilian deaths from war-related causes and genocide. The movement of large numbers of people was a major factor in the deadly Spanish flu pandemic.

The causes of World War I included the rise of the German Empire and decline of the Ottoman Empire, which disturbed the long-standing balance of power in Europe, the exacerbation of imperial rivalries, and an arms race between the great powers. Growing tensions in the Balkans reached a breaking point on 28 June 1914 when Gavrilo Princip, a Bosnian Serb, assassinated Franz Ferdinand, the heir to the Austro-Hungarian throne. Austria-Hungary blamed Serbia, and declared war on 28 July. After Russia mobilised in Serbia's defence, Germany declared war on Russia and France, who had an alliance. The United Kingdom entered the war after Germany invaded Belgium, and the Ottoman Empire joined the Central Powers in November. Germany's strategy in 1914 was to quickly defeat France before transferring its forces to the east, but its advance was halted in September, and by the end of the year the Western Front consisted of a near-continuous line of trenches from the English Channel to Switzerland. The Eastern Front was more dynamic, but neither side gained a decisive advantage, despite costly offensives. Italy, Bulgaria, Romania, Greece and others entered the war from 1915 onward.

The Arab Revolt (Arabic: الثورة العربية al-Thawra al-'Arabiyya), also known as the Great Arab Revolt (الثورة العربية الكبرى al-Thawra al-'Arabiyya al-Kubrā), was an armed uprising by the Hashemite-led Arabs of the Hejaz against the Ottoman Empire amidst the Middle Eastern theatre of World War I.

On the basis of the McMahon–Hussein Correspondence, exchanged between Henry McMahon of the United Kingdom and Hussein bin Ali of the Kingdom of Hejaz, the rebellion against the ruling Turks was officially initiated at Mecca on 10 June 1916. The primary goal of the Arab rebels was to establish an independent and unified Arab state stretching from Aleppo to Aden, which the British government had promised to recognize.

Franz Joseph Hermann Michael Maria von Papen, Erbsälzer zu Werl und Neuwerk (German: [ˈfʁants fɔn ˈpaːpn̩] ; 29 October 1879 – 2 May 1969) was a German politician, diplomat, Prussian nobleman and army officer. A national conservative, he served as Chancellor of Germany in 1932, and then as Vice-Chancellor under Adolf Hitler from 1933 to 1934. A committed monarchist, Papen is largely remembered for his role in bringing Hitler to power.

Born into a wealthy and powerful family of Westphalian Catholic aristocrats, Papen served in the Prussian Army from 1898 onward and was trained as an officer of the German General Staff. He served as a military attaché in Mexico and the United States from 1913 to 1915, while also covertly organising acts of sabotage in the United States and quietly backing and financing Mexican forces in the Mexican Revolution on behalf of German military intelligence. After being expelled as persona non grata by the United States State Department in 1915, he served as a battalion commander on the Western Front of World War I and finished his war service in the Middle Eastern theatre as a lieutenant colonel.

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.

The Arab Union is a theoretical political union of the Arab states. The term was first used when the British Empire and French empire promised the Arabs a united independent state in return for revolting against the Ottoman Empire, with which the United Kingdom and France was at war. It never came to fruition following the Sykes–Picot Agreement. Despite this, many in the Arab world have since called for the creation of a pan-Arab state. Egyptian President Gamal Abdel Nasser made several unsuccessful attempts to unite Egypt with other Arab countries (including Iraq and North Yemen), and briefly succeeded in forming the United Arab Republic with Syria in 1958, which dissolved in 1971. The union is considered as one of the solutions to end the Israeli-Palestinian conflict.

Similar attempts were made by other Arab leaders, such as Hafez al-Assad, Ahmed Hassan al-Bakr, Faisal I of Iraq, Muammar Gaddafi, Saddam Hussein, Gaafar Nimeiry and Anwar Sadat.

The following is a list of Ottoman sieges and landings from the late 1200s to World War I.

The Indian Army (IA) (ISO: Bhāratīya Sēnā) is the land-based branch and largest component of the Indian Armed Forces. The President of India is the Supreme Commander of the Indian Army, and its professional head is the Chief of the Army Staff (COAS). The Indian Army was established on 1 April 1895 alongside the long established presidency armies of the East India Company, which too were absorbed into it in 1903. Some princely states maintained their own armies which formed the Imperial Service Troops which, along with the Indian Army formed the land component of the Armed Forces of the Crown of India, responsible for the defence of the Indian Empire. The Imperial Service Troops were merged into the Indian Army after independence. The units and regiments of the Indian Army have diverse histories and have participated in several battles and campaigns around the world, earning many battle and theatre honours before and after Independence.

The primary mission of the Indian Army is to ensure national security and national unity, to defend the nation from external aggression and internal threats, and to maintain peace and security within its borders. It conducts humanitarian rescue operations during natural calamities and other disturbances, such as Operation Surya Hope, and can also be requisitioned by the government to cope with internal threats. It is a major component of national power, alongside the Indian Navy and the Indian Air Force. The independent Indian army has been involved in four wars with neighbouring Pakistan and one with China. It has emerged victorious in all wars against Pakistan. Other major operations undertaken by the army include Operation Vijay, Operation Meghdoot, and Operation Cactus. The army has conducted large peacetime exercises such as Operation Brasstacks and Exercise Shoorveer, and it has also been an active participant in numerous United Nations peacekeeping missions. The Indian Army was a major force in the First and Second World Wars, particularly in the Western Front and the Middle Eastern theatre during World War I, and the South-East Asian Theatre and the East African and North African campaigns during World War II.