The capital of Northern Ireland is bracing for one of the largest Protestant parades in decades.
More than 25,000 people will be marking the centenary of the Ulster Covenant in Belfast, in the biggest policing operation in the province in 20 years.
The six-mile march from central Belfast to Stormont will mark the 100th anniversary of the Ulster Covenant, to oppose Home Rule for Ireland in 1912.
The BBC reports that thousands of spectators are expected to watch the parade.
A century ago, the signing of the document laid the foundations for the partition of Ireland and the formation of Northern Ireland a decade later.