On January 13, 1986 a violent power struggle erupted within the ruling Yemeni Socialist Party in South Yemen, escalating into a brief but exceptionally bloody civil war that ousted President Ali Nasir Muhammad and killed several of his rivals over about two weeks. The party had split between the faction of the sitting leader Ali Nasir Muhammad and that of the returned former president Abdul Fattah Ismail. On January 13, 1986 bodyguards of Ali Nasir opened fire on Politburo members at a meeting in Aden; several senior figures, including the vice president and defense minister, were killed, and Ismail was killed later that day.
The killings triggered an eleven to twelve day civil war between the factions that left thousands dead. Ali Nasir's forces were defeated, and he and some 60,000 supporters fled to North Yemen.
Researched Details
Researched
Independent research, added record by record. Hover any label for what it means.
Target identified in Coup Atlas research: President Ali Nasir Muhammad, ousted in the January 1986 South Yemen civil war; defeated, he fled to North Yemen with tens of thousands of supporters.
RESEARCHED NAME
Key figures
Ali Nasir Muhammad (president ousted and exiled)
Abdul Fattah Ismail (rival former president killed in the fighting)
Sources
The South Yemeni crisis was a failed coup and brief civil war on January 13, 1986 in South Yemen, developing from ideological and tribal tensions between two factions of the ruling Yemeni Socialist Party centred on Abdul Fattah Ismail's faction at-Toghmah and Ali Nasir Muhammad's faction az-Zomrah, which escalated into a costly civil war that lasted eleven days and resulted in thousands of casualties.
SOURCE REVIEWEDWikipedia, South Yemeni crisisopen source ↗
On January 13, 1986 bodyguards of Ali Nasir Muhammad opened fire on members of the Yemeni Socialist Party politburo as the body was due to meet, a firefight broke out, Vice-president Ali Ahmad Nasir Antar, Defense minister Saleh Muslih Qassem, and the YSP disciplinary chief Ali Shayi Hadi were killed in the shootout, and Abdul Fattah Ismail survived the attack but was killed later that day as naval forces loyal to Ali Nasir shelled the tank in which he tried to escape.
SOURCE REVIEWEDWikipedia, South Yemeni crisisopen source ↗
Fighting lasted for about twelve days and resulted in thousands of casualties, the ouster of Ali Nasir, and the deaths of Abdul Fattah Ismail, Ali Antar, Saleh Muslih, and Ali Shayi, and some 60,000 people, including Ali Nasir and his brigade, fled to the Yemen Arab Republic, in a conflict that took the lives of anywhere from 4,000 to 10,000 people.
SOURCE REVIEWEDWikipedia, South Yemeni crisisopen source ↗
Ali Nasir Muhammad's term as president lasted from 21 April 1980 to 24 January 1986, and following the civil war he was succeeded by Haidar Abu Bakr al-Attas, while Ali Salem al-Beidh, an ally of Ismail who survived the attack, took the top position in the Yemeni Socialist Party.
SOURCE REVIEWEDWikipedia, Ali Nasir Muhammadopen source ↗
Editorial Note
Fate coding: the dataset codes the deposed president Ali Nasir Muhammad as exiled, which matches; his faction was defeated in the civil war and he fled to North Yemen with some 60,000 supporters. He was not killed. Killings context handled with care and cited: although the dataset's coded deposed leader survived and fled, the January 1986 events were extraordinarily violent; the initial attack killed several Politburo members (the vice president, defense minister, and disciplinary chief), the rival former president Abdul Fattah Ismail was killed that day, and the ensuing civil war killed thousands (estimates range from about 4,000 to 10,000). Every such claim is cited and attributed, and the conflicting casualty estimates are recorded rather than resolved. Coding note: the dataset labels this a military coup; sources describe it as a failed coup that became a brief civil war, an internecine factional war within the ruling Yemeni Socialist Party rather than an external seizure. Neutrality maintained on a contested subject. Historical weight recorded: the conflict destroyed much of the party's experienced leadership and weakened the state, contributing to South Yemen's 1990 unification with North Yemen, later context.
Cross-Reference
Datasets agree. At least two of the three reference datasets we check against carry this event, and none of them disagrees about its date or its result.
Identifiers for finding this same event in the other datasets:
Coup Atlas research identifies the target as: President Ali Nasir Muhammad, ousted in the January 1986 South Yemen civil war; defeated, he fled to North Yemen with tens of thousands of supporters..
Baseline coding: Incumbent executive removed from power. Recorded leader fate: deposed; exiled. The baseline file does not name individual targets; researched names are kept in a separate layer.
Baseline Dataset Citation
Cline Center Coup d’État Project Dataset, v2.2.2
Peyton, Buddy, Joseph Bajjalieh, Michael Martin, and Andrea Gerald. 2026. Cline Center Coup d’État Project Dataset. Cline Center for Advanced Social Research. V.2.2.2. February 17. University of Illinois Urbana-Champaign. doi: 10.13012/B2IDB-9651987_V10
“South Yemen Head is Said to Depart,” by John Kifner, January 19, 1986
This is the citation trail carried by the baseline dataset, grouped by outlet and rejoined from the line-wrapped original. Coup Atlas has not independently re-checked every document; read the original before citing a specific claim. URLs the import damaged beyond safe repair are shown as plain text and listed in citations-report.md. How this list is built →