Abd-Rabbu Mansour Hadi, the former president of Yemen who steered the country through one of the most turbulent decades in its modern history, has died in Riyadh, Saudi Arabia, following a sudden health crisis. Yemen's presidency announced three days of national mourning and the lowering of flags, describing Hadi as a leader who "guided the Yemeni state through one of the most complex periods the country has ever witnessed, amid war, a coup, and unprecedented humanitarian and economic crises."

Born in 1945 in the Ghaydhah district of Abyan province in southern Yemen, Hadi spent his early career in the military, training in Britain, the Soviet Union, and Egypt. His political profile first emerged in 1986 during a violent internal power struggle within the ruling Socialist Party of the then-People's Democratic Republic of Yemen — the communist South Yemen that existed before the country's unification in 1990. He was sentenced to death in absentia for his role in those events, but was pardoned after unification and went on to serve as vice president under long-ruling President Ali Abdullah Saleh for nearly two decades.

When Yemen was swept up in the Arab Spring protests of 2011, Hadi played a quiet but significant role in persuading Saleh to sign a Gulf Cooperation Council-brokered power transfer agreement. He formally assumed the presidency in February 2012, winning a single-candidate election with 99.8 percent of the vote, in a transitional arrangement meant to stabilise a fractured state. His tenure proved enormously difficult: Houthi forces — an armed movement from northern Yemen backed by Iran — seized the capital Sanaa in 2014, forcing Hadi first to resign and then to flee to the southern port city of Aden, which became the internationally recognised government's temporary capital. He later escaped to Saudi Arabia in 2015, as a Saudi-led military coalition intervened in support of his government against the Houthis. He survived four assassination attempts during his presidency.

Yemen, the poorest country on the Arabian Peninsula, has endured a devastating civil war since 2014, with the Houthi movement controlling large swathes of the country's north and the Saudi-led coalition backing the internationally recognised government in the south. A UN-brokered truce in April 2022 largely halted the fighting, though the humanitarian crisis has continued. That same year, Hadi transferred all his presidential powers to a newly formed Presidential Leadership Council, stepping back from public life after a decade in office. He spent his final years living quietly in Riyadh, largely out of the spotlight.

Hadi's death closes a chapter in Yemen's recent history — a life that began under British colonial rule in the south, survived a death sentence, and ended in exile as his country remains divided and deeply scarred. He was 81 years old.