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- D-Day (military term)In the military, D-Day is the day on which a combat attack or operation is to be initiated
- D-Day naval deceptionsOperations Taxable, Glimmer and Big Drum were tactical military deceptions conducted on 6
- Dabulamanzi kaMpandeDabulamanzi kaMpande (c. 1839 – September 22, 1886) was a Zulu commander for the Zulu king
- Dan CantorAmerican activist
- Daniel Edward HowardDaniel Edward Howard (4 August 1861 – 9 July 1935) was the 16th president of Liberia, serv
- Danish resistance movementMovement in resistance to the German occupation of Denmark during World War II
- Danzig crisis1939 diplomatic crisis between Poland and Nazi Germany
- Dardanelles Fortified Area CommandThe Dardanelles Fortified Area Command or Mediterranean Strait Fortified Area Command or Ç
- Datu AliDatu Ali (died 1905) was the Rajahmuda of Tinungkup (alternatively spelled as Tinukop) wit
- David G. ChandlerDavid Geoffrey Chandler (15 January 1934 – 10 October 2004) was a British historian whose
- David HarumDavid Harum; A Story of American Life is a best-selling novel of 1898 by Edward Noyes West
- David TrenchSir David Clive Crosbie Trench GCMG MC DL (Chinese: 戴麟趾; 2 June 1915 – 4 December 1988) wa
- Dawes Plan1924 plan to resolve Germany's World War I reparations
- Dayton, TennesseeDayton is a city in and the county seat of Rhea County, Tennessee, United States. As of th
- De-satellization of the Socialist Republic of RomaniaRelease of Romania from its Soviet satellite status
- De-StalinizationPolitical reforms after Stalin's death
- Death and state funeral of Joseph StalinDeath of the second Soviet leader
- Death dates of victims of the Great PurgeJoseph Stalin's purges and massacres between 1936 and the invasion of the Soviet Union by
- Death mask of Napoleon1821 death mask and its copies
- Death of Abu Bakr al-Baghdadi2019 U.S. military operation in Syria
- Death of Adolf Hitler1945 suicide of German dictator
- Death of Benito Mussolini1945 death of deposed Italian dictator
- Death of Napoleon1821 death in Saint Helena
- December 9th Movement1935 student protest against Japanese aggression in Beijing, Republic-era China
- Decembrist revolt1825 failed coup in the Russian Empire
- Declaration of independence of the Democratic Republic of Vietnam1945 document by Hồ Chí Minh declaring Vietnam's republic
- Declaration of the Rights of the Peoples of Russia1917 Soviet document by Lenin and Stalin
- Declarations of war during World War IIThis is a timeline of declarations of war during World War II.
- DeclinismBelief that something is getting worse
- DecommunizationPurging an area of communism
- Decommunization in RussiaLimited process of the removal of communist symbols
- Decommunization in UkraineDecommunization in Ukraine started during the dissolution of the Soviet Union in 1991 and
- Decree against Communism1949 Catholic Church document
- DefectionGiving up of allegiance to one state for allegiance to another
- Defence of Canada Regulations1939 Canadian laws which limited citizens' personal and property rights during WWII
- Defence of the Reich1939–45 aerial campaign of World War II
- Defense of Schwedt BridgeheadThe defense of the Schwedt bridgehead was a German 3rd Panzer Army operation on the Easter
- Defense of the Great WallArmy campaign between China and Japan before the Second Sino-Japanese War
- Defensively equipped merchant shipDefensively equipped merchant ship (DEMS) was an Admiralty Trade Division programme establ
- Dekulakization1929–1932 Soviet repression of peasants
- Democratic Federal Yugoslavia1943–1945 provisional state in Southeast Europe
- Democratic revolutionRevolution in which a democracy is instituted
- Demographics of the Soviet UnionDemographic features of the population of the Soviet Union include vital statistics, ethni
- Demos (U.S. think tank)Demos is a liberal think tank based in the United States. Founded in 2000, Demos' stated m
- Deng HuaDeng Hua (simplified Chinese: 邓华; traditional Chinese: 鄧華; pinyin: Dèng Huá; 28 April 1910
- DeplatformingDenying access to a platform to express opinions
- Deportation of Koreans in the Soviet Union1937 forced transfer to Central Asia
- Deportations of Kurds from TranscaucasiaThe Kurds were deported from Azerbaijan SSR, Georgian SSR, and Armenian SSR by the Soviet
- Deputy Premier of the Soviet UnionGovernment position in the USSR
- Deputy Prime Minister of PrussiaThis page lists deputy prime ministers or minister-presidents of Prussia.
- Dermide LeclercDermide Louis Napoléon Leclerc (20 April 1798 – 14 August 1804) was the only child of Paul
- Dervish WarMilitary confrontations between colonial powers and the Dervishes, 1900-1920
- Desert ColumnThe Desert Column was a First World War British Empire army corps which operated in the Si
- Devil's gardensThe Devil's gardens was the name given by Field Marshal (Generalfeldmarschall) Erwin Romme
- Diego ArchuletaBrigadier General Diego Archuleta (March 27, 1814 – 1884), was a member of the Mexican Con
- Diet of HungaryParliament of the Kingdom of Hungary
- Ding RuchangAdmiral Ding Ruchang (Chinese: 丁汝昌; pinyin: Dīng Rǔchāng; Wade–Giles: Ting Ju-ch'ang; 18 N
- DinguirayeDinguiraye (N’ko: ߘߌ߲ߞߌߙߊߦߌ߫ ) is a small town in northern Guinea, known for its large mos
- Disfranchisement after the Reconstruction eraPost-Civil War voter suppression efforts in the United States
- Dismas NsengiyaremyeDismas Nsengiyaremye (born 1945) served as Prime Minister of Rwanda from 2 April 1992 to 1
- Dissident movement in the Polish People's RepublicPolish political movement
- Dissolution of Austria-HungaryHistorical event in 1918
- Dissolution of the Ottoman Empire1908–1922 political event
- Dissolution of the Soviet Union1988–1991 breakup of the sovereign state
- Diversity of tacticsSocial phenomenon
- Division (military)Large military unit or formation
- Division of KoreaSeparation of North and South Korea
- Dockum Drug Store sit-inThe Dockum Drug Store sit-in was one of the first organized lunch counter sit-ins for the
- Documentation Center of CambodiaThe Documentation Center of Cambodia (DC-Cam) is a Cambodian non-governmental organization
- Dodecanese campaignCampaign of the Mediterranean theatre of World War II
- Dogger Bank incident1904 Russian attack on British trawlers
- Dominican War of Independence1844–56 Dominican Republic war with Haiti
- Dominion of New ZealandBritish dominion in Oceania from 1907 to 1947
- Dominion of NewfoundlandBritish dominion in North America from 1907 to 1949
- Domino theoryCold War–era geopolitical theory on the spread of communism
- Dongding IslandDongding Island (Chinese: 東碇島 / 東椗島; pinyin: Dōngdìng Dǎo; Pe̍h-ōe-jī: Tang-tiāⁿ) is an 0.
- DouveThe Douve (French pronunciation: ) or Ouve is a river, 78.6 km (48.8 mi) in length, which
- Down to the Countryside Movement1950s Chinese policy of moving urban youth
- Drang nach OstenMotto of the 19th-century German nationalist movement
- Dreyfus affair1894–1906 political scandal in France
- Dual Alliance (1879)Alliance between Germany and Austria-Hungary
- Duchy of Carinthia976–1918 state of the Holy Roman Empire and later Austrian Empire
- Duchy of StyriaPart of Holy Roman Empire, Austria-Hungary
- Dungan Revolt (1862–1877)Muslim revolt against Qing China
- Dunkirk evacuationEvacuation of Allied forces in mid-1940
- Durand LineInternational border between Afghanistan and Pakistan
- Dust Bowl1930s period of severe dust storms in North America
- Dutch East IndiesDutch colony in Indonesia (1800–1949)
- Dutch East Indies campaignConquest of Indonesia by Japan, 1941–1942
- Dutch expedition to Valdivia1643 failed expedition to Chile
- Dutch-Paris lineDutch-Paris escape line was a resistance network during World War II with ties to the Dutc
- Dutch–Indonesian Round Table Conference1949 Dutch recognition of Indonesian independence
- DutertismoFilipino syncretic political ideology