Committee of Union and ProgressThe Committee of Union and Progress (CUP) (اتحاد و ترقى جمعيتی), later the Union and Progress Party (اتحاد و ترقى فرقهسی), was a secret revolutionary organization and political party active between 1889 and 1926 in the Ottoman Empire and the Republic of Turkey. The foremost faction within the Young Turk movement, it instigated the 1908 Young Turk Revolution, which ended absolute monarchy and began the Second Constitutional Era.
Mesopotamian campaignThe Mesopotamian campaign was a campaign in the Middle Eastern theatre of World War I fought between the Allies represented by the British Empire, troops from Britain, Australia and the vast majority from British Raj, against the Central Powers, mostly the Ottoman Empire. The Ottoman Empire had conquered the region in the early 16th century, but never gained complete control. Regional pockets of Ottoman control through local proxy rulers maintained the Ottomans' reach throughout Mesopotamia (modern Iraq).
Prussian ArmyThe Royal Prussian Army (1701–1919, Königlich Preußische Armee) served as the army of the Kingdom of Prussia. It became vital to the development of Prussia as a European power. The Prussian Army had its roots in the core mercenary forces of Brandenburg-Prussia during the Thirty Years' War of 1618–1648. Elector Frederick William developed it into a viable standing army, while King Frederick William I of Prussia dramatically increased its size and improved its doctrines.
World War IWorld War I or the First World War, often abbreviated as WWI or WW1, known contemporaneously as the Great War, was a major global conflict lasting from 1914 to 1918. It was fought between two coalitions, the Allies and the Central Powers. Fighting took place throughout Europe, the Middle East, Africa, the Pacific, and parts of Asia. The first decade of the 20th century saw increasing diplomatic tension between the European great powers.