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- Abadan CrisisOil crisis in Iran from 1951 to 1954
- Abbottabad Commission ReportThe Abbottabad Commission Report is a judicial inquiry paper authored and submitted by the
- Abibatu MogajiChief Abibatu Mogaji OON MFR (16 October 1916 – 15 June 2013) was a Nigerian business magn
- Abolition of monarchyThe abolition of monarchy is a legislative or revolutionary movement to abolish monarchica
- Abolition of the presidency in ChinaThe dispute over the abolition of the presidency of the People's Republic of China (former
- Abraham Accords2020 series of Arab–Israeli normalization agreements
- Abu Bakr al-BaghdadiLeader of the Islamic State from 2013 to 2019
- Abu Ghraib torture and prisoner abuse2004 American military scandal
- Abu SayyafJihadist militant group in the Philippines
- Aceh expedition (1606)The Aceh Expedition was a military expedition launched by the Portuguese against the Acehn
- Acehnese conquest of PasaiThe Conquest of Pasai was a military campaign in 1523–1524 launched by the Sultanate of Ac
- Achike UdenwaAchike Udenwa (born in 1948) was the governor of Imo State in Nigeria. He became governor
- Adelaide TamboSouth African anti-apartheid activist and political exile
- Aden Emergency1963–1967 insurgency in South Arabia against British colonial rule
- Adolfo Arnoldo MajanoAdolfo Arnoldo Majano Ramos (born 21 April 1938) is a former Salvadoran military and polit
- Afghan afghaniCurrency of Afghanistan
- Afghan ArmyLand service branch of the Afghan military
- Afghan Civil War (1989–1992)Civil war in Afghanistan (1989–1992)
- Afghan Civil War (1992–1996)Civil war in Afghanistan (1992–1996)
- Afghan Civil War (1996–2001)1996–2001 civil war in Afghanistan
- Afghan mujahideenIslamist resistance groups
- Afghan National PoliceThe Afghan National Police (ANP; Pashto: د افغانستان ملي څارندوی; Dari: پولیس ملی افغانستا
- Afghan peace processPeace processes have taken place during several phases of the Afghanistan conflict, which
- Afghanistan–Pakistan border skirmishesArmed clashes between Afghanistan and Pakistan since 1949
- Africa–Soviet Union relationsAfrica–Soviet Union relations are the diplomatic, political, military, and cultural relati
- African Resistance MovementThe African Resistance Movement (ARM) was a militant anti-apartheid resistance movement, w
- African Union Mission in SudanThe African Union Mission in Sudan (AMIS) was an African Union (AU) peacekeeping force ope
- Afrikaner Broederbond1918–1994 Afrikaner Calvinist male organisation in South Africa
- Afrikaner nationalismPolitical ideology in South Africa
- AfrikanerbondThe Afrikanerbond (Afrikaner League), established in 1994, is the successor to the Afrikan
- Aftermath of World War IIEvents after the end of the war in 1945
- AggiornamentoAggiornamento (Italian pronunciation: ) is an Italian word meaning "bringing up to date",
- Ahmed Santos (militant)Ahmed Santos (born Hilarion del Rosario Santos III) is a Filipino who converted to Islam w
- AI boomPeriod of rapid progress in AI
- Aidan McAnespieAidan McAnespie (22 June 1964 – 21 February 1988) was an Irish Catholic man who was shot i
- Al Madinah-class frigateThe Al Madinah class are a series of four frigates built in France for the Royal Saudi Nav
- Al-Qaeda insurgency in YemenInsurgency in Yemen by Al-Qaeda
- Al-Shabaab (militant group)Somalia-based Wahhabi militant group
- Alan DossAlan Claude Doss (born 7 January 1945) is a British international civil servant who has sp
- Albertas ŠimėnasAlbertas Šimėnas (born 17 February 1950) was Prime Minister of Lithuania for 3 days, from
- Alberto Pineda VillaAlberto Pineda Villa (died 12 September 2009), commonly referred to by his alias El Borrad
- Alessandro AlibrandiAlessandro Alibrandi (12 June 1960 – 5 December 1981) was an Italian neofascist terrorist
- Alex RackleyAlex Rackley (June 2, 1949 – May 20, 1969) was an American activist who was a member of th
- Alexander OgomudiaAlexander Odeareduo Ogomudia CFR DSS fwc psc(+) MSc FNSE (born 29 December 1949) is a reti
- Alexandra, South AfricaAlexandra, informally abbreviated to Alex, is a township in the Gauteng province of South
- Algerian Civil War1992–2002 conflict between the Algerian government and Islamist rebels
- Ali FidanAli Fidan (born 1970) is a Turkish bureaucrat who served as the Governor of Düzce between
- Ali SaidAli Sa'id Sheik Hassan, also referred to as Ali Sa'id Hassan Awale and Ali Said (died 17 J
- Aloys NdimbatiAloys Ndimbati (born in the early 1950s – 1997) was a Rwandan fugitive war criminal, wante
- Amadou SanogoAmadou Haya Sanogo (born 1972 or 1973) is a Malian military officer who was leader of the
- Ameril Umbra KatoAmeril Umbra Kato (18 May 1946 – 14 April 2015) was a Filipino Islamic militant who was th
- Anandpur Sahib Resolution1973 list of demands
- Andrade GutierrezAndrade Gutierrez is a Brazilian private multinational conglomerate headquartered in Belo
- Anfa expedition (1468)The Anfa Expedition of 1468 took place when a Portuguese fleet commanded by Duke Fernando
- ANFOIndustrial high explosive
- Anglo-Persian capture of Hormuz1622 capture of Iranian island
- Anglo-Persian capture of Qeshm1621–1622 conflict
- Anglo-Persian Oil CompanyEnglish energy company founded in 1908
- Angolan War of Independence1961–1974 armed conflict in Southwestern Africa
- Annexation of Western SaharaThe annexation of Western Sahara occurred in two stages: 1976 and 1979. Shortly after Spai
- Ansar DineMilitant Islamist organization in Mali
- Ante GotovinaAnte Gotovina (born 12 October 1955) is a Croatian retired lieutenant general and former F
- Anthem without a titleAn anthem without a title was the untitled anthem of the Netherlands Antilles. It was writ
- Anthony EdenPrime Minister of the United Kingdom from 1955 to 1957
- Anti-Apartheid Movement1959–1994 British anti-apartheid organisation
- Anti-bourgeois liberalizationChinese political slogan
- Anti-corruption campaign under Xi JinpingCampaign in China since 2012
- Anti-German sentimentOpposition to Germany, its inhabitants and culture
- Anti-monarchism in JapanOpposition to monarchism in Japan
- Anti-Palestinian racismDiscrimination directed at the Palestinian people
- Anti-Right Deviation StruggleChinese political campaign launched in 1959
- Anti-Rightist Campaign1957–59 Chinese political campaign under Mao Zedong
- Anti-Terrorist Unit (Liberia)The Anti-Terrorist Unit (ATU), also known as the Anti-Terrorist Brigade, was a paramilitar
- Anton TusAnton Tus (Croatian pronunciation: ; 22 November 1931 – 4 September 2023) was a Croatian g
- Apartheid in popular cultureThere is a wide range of ways in which people have represented apartheid in popular cultur
- APEC China 2001APEC annual meeting
- APEC China 2014APEC gathering
- Appropriation billAn appropriation bill, also known as supply bill or spending bill, is a proposed law that
- April 2018 missile strikes against SyriaMilitary strikes by US, UK, France against government sites in Syria
- ARA Isla de los EstadosARA Isla de los Estados was an Argentine Navy supply ship sunk during the Falklands War.
- ARA NarwalARA Narwal was an Argentinian fishing trawler, equipped for ELINT purposes during the Falk
- Arab Cold WarPeriod of political rivalry in the Arab world
- Arab–Israeli normalizationPeace efforts between Arab states and Israel
- Arakan Rohingya Islamic FrontThe Arakan Rohingya Islamic Front (ARIF) was a Rohingya insurgent group active in northern
- Armed Forces of the PhilippinesMilitary forces of the Philippines
- Armed Forces Revolutionary CouncilThe Armed Forces Revolutionary Council (AFRC) was a group of Sierra Leone soldiers that al
- Army Group South Rear AreaArmy Group South Rear Area (Rückwärtiges Heeresgebiet Süd) was one of the three Army Group
- Army of the Republic of Bosnia and HerzegovinaLand branch of the Bosnian and Herzegovinan Armed Forces
- Arnoldo Rueda MedinaArnoldo Rueda Medina (born 15 December 1969) is a former Mexican drug lord and high-rankin
- Arthur GoldreichJewish-South African anti-apartheid and zionist activist
- Artificial Intelligence Cold WarGeopolitical narrative
- Arusha Accords (Rwanda)1993 accords ending the Rwandan Civil War
- AspriAsisten Pribadi (English: Personal assistants), better known by the acronym Aspri, were a
- AssadismFar-left political ideology based on the ideas of the Assad family
- Assassination of Ali Khamenei2026 assassination in Tehran, Iran
- Assassination of Chris Hani1993 murder in Boksburg, South Africa
- Assassination of Indira Gandhi1984 assassination of Indian prime minister
- Assassination of Ismail Haniyeh2024 murder of Hamas leader in Tehran, Iran
- Assassination of John F. Kennedy1963 assassination in Dallas, Texas
- Assassination of Jovenel Moïse2021 murder in Port-au-Prince, Haiti
- Assassination of Juvénal Habyarimana and Cyprien Ntaryamira1994 aircraft shootdown in Rwanda
- Assassination of Mahatma Gandhi1948 murder in New Delhi, India
- Assassination of Martin Luther King Jr.1968 murder in Memphis, Tennessee, U.S.
- Assassination of Yitzhak Rabin1995 murder in Tel Aviv, Israel
- Assembly of YugoslaviaThe Parliament of Yugoslavia was the legislature of Yugoslavia. Before World War II in the
- Assimi GoïtaLeader of Mali since 2021
- August 1986 Turkish incursion into northern IraqThe August 1986 Turkish incursion into northern Iraq, by the Turkish Air Forces and Turkis
- Augustin BizimunguAugustin Bizimungu (born 28 August 1952) is a Rwandan convicted war criminal and former ge
- Australian Defence ForceNational military force of Australia
- Australian Defence Force EnsignThe Australian Defence Force Ensign is a flag of Australia which represents the tri-servic
- Australian Defence OrganisationThe Australian Defence Organisation (ADO) is an Australian Government organisation that co
- Austria–Ukraine relationsForeign relations exist between Austria and Ukraine. Both countries established diplomatic
- Authenticité (Zaire)Official state ideology initiated in the former Republic of Zaire
- Azad Kashmir Plebiscite FrontThe Plebiscite Front in Azad Kashmir, also called Mahaz-i-Raishumari, was founded by Amanu
- Azande peopleThe Azande are an ethnic group in Central Africa speaking the Zande languages (whose class
- Azanian People's Liberation ArmyParamilitary wing of the Pan Africanist Congress from 1961 to 1994
- AzawadTuareg name for a territory in northern Mali