Kiernan Glennon has a new book on the 'Belfast pogrom' of 1920-22.
Book Review: From Pogrom to Civil War, Tom Glennon and the Belfast IRA | The Irish Story
Glennon puts the figure for those killed in political violence in Belfast in those years at 498. Combatants suffered least - 37 Crown and 14 IRA, Catholic civilians suffered most, 266 dead to 180 Protestants.
A grim picture.
A quick rundown of his arguments for those interested;
The IRA were unprepared for the consequences of their starting hostilities in the north, by assassinating DI Swanzy in Lisburn - which provoked wholesale loyalist attacks on Catholics. It was a long time before the came up with an organised plan to defend Catholics - most of whom at the time supported the IPP rather than SF. Nevertheless, their presence in their strongholds around the Falls deterred reprisals there while elsewhere Catholics suffered more.
Sections of the police - RIC and USC - quite openly carried out reprisals on Catholics in general and in some cases may even have been responsible for he actions they said they were avenging.
The IRA was flooded by recruits who wanted revenge on Protestants and themselves got into many sectarian attacks, including throwing hand grenades onto packed trams full of shipyard workers.
The British Army killed a lot of civilians, 70, but was at least even handed - 35 Catholics and 35 Protestants shot dead in rioting.
The violence in Belfast was not ended by the outbreak of civil war in the south as often stated, because the IRA in Belfast had already been defeated by then and many had already fled south to the Curragh to avoid internment in the north.