Hundreds of police from across UK to be deployed to Belfast after loyalist violence flares for third night

This is one of the phenomena of the situation in Northern Ireland after the peace process. The hard men of the Protestant community continue to hold their parades and riot when they can't go where they want when they want. It is still a divided society, riddled with organised crime groups. the interesting thing here though, is that a policing problem is now being dealt with by mutual aid ie the "borrowing" of police officers from elsewhere in the UK rather than the Army.