The text sets out some of the UK’s initial thoughts on how to get around the issue of the so-called backstop. The sources would not be drawn into the precise details of the content of the documents submitted by the UK.
The backstop is an insurance policy guaranteeing that the border between Northern Ireland and the Republic of Ireland remains open after Brexit in all circumstances and scenarios, while also protecting the integrity of the EU’s single market. The UK and the EU both committed to keeping the border open in December 2017 but Johnson has repeatedly pledged to ditch the backstop.
On Wednesday, the prime minister of Finland — which currently holds the rotating presidency of the European Council — warned that Johnson had to send concrete proposals by the end of this month if there was to be any chance of an agreement when the leaders of the EU’s remaining 27 member states meet in Brussels on 17-18 October.