of a united ireland? it said it could happen, but only if a majority of people in northern ireland vote for it in a border poll, and there also needs to be approval in the republic. without that, it s the status quo northern ireland remains part of the united kingdom. the agreement was drawn up by politicians back in 1998, but they made it clear the future will be decided by the people. ahead of the anniversary, police in belfast have warned of potential disorder by dissident republicans. police say they have very strong community intelligence that attacks were being planned in the city of londonderry. and they ve told officers to be prepared for all eventualities on monday. in order to respond to the threats, the chief constable of the psni says shifts have been altered to move