The 2016 prelude
On 9 October 2016, a previously unknown group calling itself the Arakan Rohingya Salvation Army (ARSA) attacked three Border Guard Police posts in Maungdaw, killing nine officers. The military's response was a four-month "clearance operation" in which entire villages were burned, hundreds of civilians killed, women gang-raped, and around 87,000 Rohingya driven across the border into Bangladesh by early 2017. A February 2017 OHCHR flash report, based on interviews with more than 200 survivors, concluded the abuses "very likely" amounted to crimes against humanity.
25 August 2017: the rupture
In the early hours of 25 August 2017, ARSA fighters — armed mainly with knives and a handful of firearms — attacked around thirty police posts and one army base across northern Rakhine. The Myanmar military's response was neither proportionate nor spontaneous. Within hours, coordinated operations began simultaneously in villages hundreds of kilometres apart, with troop movements, air support, and pre-positioned militias suggesting long advance planning. Soldiers, Border Guard Police, and Rakhine civilian militias moved through more than 390 Rohingya villages, killing men and boys, gang-raping women and girls, executing families in their homes, and burning what remained.
The village of Tula Toli (Min Gyi) became a case study. On 30 August 2017 soldiers herded hundreds of villagers to a riverbank, separated men from women, and executed the men. Women and older girls were dragged into houses, raped in groups, and then locked inside before the buildings were set alight. Human Rights Watch and the UN documented similar patterns at Chut Pyin, Gu Dar Pyin, Maung Nu, and Inn Din. High-resolution satellite imagery later showed at least 392 Rohingya villages partially or entirely destroyed.
The largest exodus in decades
In three weeks, more than 500,000 Rohingya fled across the Naf river into Bangladesh. By December 2017 the number exceeded 745,000, added to some 300,000 already displaced from earlier waves. The Kutupalong–Balukhali expansion in Cox's Bazar became — and remains — the world's largest refugee settlement. Médecins Sans Frontières retrospective mortality surveys estimated at least 6,700 Rohingya, including at least 730 children under five, were killed in the first month of the operations alone; other surveys placed the true figure closer to 24,000.
Sexual violence as a weapon
The UN Fact-Finding Mission concluded that sexual and gender-based violence was perpetrated on such a scale and in such a coordinated way that it could not have been incidental. Mass gang-rape by soldiers, mutilation, sexual slavery in military compounds, and the killing of pregnant women and infants were documented across dozens of villages. The Mission designated sexual violence as one of the "hallmarks" of the Tatmadaw's conduct and a strong indicator of genocidal intent.
'Genocidal intent'
In September 2018 the UN-mandated Independent International Fact-Finding Mission published a 444-page report and a 1,660-page annex. It concluded there was sufficient information to warrant the investigation and prosecution of senior generals — including Commander-in-Chief Min Aung Hlaing — for genocide, crimes against humanity, and war crimes. It also found that Facebook had played a "determining role" in the spread of the hate speech that preceded the violence.
Since then, The Gambia has filed a genocide case against Myanmar at the International Court of Justice (2019, provisional measures ordered 2020); Argentina has opened a universal-jurisdiction criminal investigation (2021); the International Criminal Court is investigating the cross-border crime of deportation (opened 2019); and the US, Canadian, French, British and Turkish governments have formally described the events as genocide. None of the named perpetrators has yet stood trial.