evidence: Rockall is fewer than 300 miles from the western coasts of the Republic of Ireland and Scotland. The UK claimed Rockall in 1955, but Ireland, Iceland and Denmark have previously challenged that claim. [...] "We can fish at the minute at Rockall as we have fishing rights there but when the UK leaves they will no longer be part of the Common Fisheries Policy and there will have to be some detailed discussions around the fisheries which are very difficult to resolve."