From the new IEG open access publication “On site, in time” (Ortstermine) here is an article on the “Peace Lines” in Belfast by Fabian Klose.
Negotiating Differences in Europe: Belfast
Beginning of “the Troubles” and the erection of the “Peace Lines”
Over the course of 1969, domestic tensions in Northern Ireland, which had been growing for decades between the Protestant and Catholic parts of the population, escalated to the point of open violence. In August, various cities experienced several days of civil-war-like unrest. In Belfast, the hostile confessional groups engaged in veritable street battles in which residential districts were attacked and entire streets lined with houses were burned down. Nine people were killed, over 700 civilians and police were injured, and in Belfast alone nearly 400 houses were damaged by arson attacks.
Northern Ireland was an integral part of the United Kingdom. When the situation came to a head, the prime minister of Northern Ireland called on the central government in London for help. In response, British army units were sent to separate the parties to the conflict and bring the situation back under control. After arriving, the British soldiers began to put up barbed wire fences and checkpoints around the neighbourhoods controlled by the battling groups – first at the hot spot between the Catholic Falls Road and the Protestant Shankill Road. The idea was to prevent further attacks between Protestants and Catholics. General Sir Ian Freeland, the British troops’ general officer commanding, called these peace lines a “very, very temporary affair”, underscoring his position thus: “We will not have a Berlin Wall or anything like that in this city”.
Yet over the course of the nearly thirty-year conflict in Northern Ireland, which is often referred to as “the Troubles”, the provisional fences were indeed replaced with permanent barriers: walls of concrete and steel, up to eight meters high and reinforced at the top with fencing, whose various sections ran for a total of 34 kilometres through front yards and residential streets. These so-called “peace lines” or “peace walls” put their stamp on the cityscape of Belfast, as they did in other Northern Irish cities like Derry/Londonderry, Portadown and Lurgan. They became a visible expression of Northern Ireland’s population, divided by civil war.