British Prime Minister Boris Johnson has said the UK must "renew the ties" between its four nations to ensure a bright post-Brexit future, Sky News reports.
The Conservative leader is heading north of the border for his first visit to Scotland since taking office, and is aiming to use the trip to show his commitment to driving economic growth outside England.
He will announce a £300m funding pot for communities in Scotland, Wales and Northern Ireland in a bid to allay fears over a break-up of the union after Brexit, with the SNP having branded him the "last prime minister of the UK".
Ahead of an appearance at a military base in Scotland on Monday, Johnson said: "Our union is the most successful political and economic union in history.
"We are a global brand and together we are safer, stronger and more prosperous. So as we prepare for our bright future after Brexit, it's vital we renew the ties that bind our United Kingdom."
Both Ms Sturgeon and her Welsh counterpart Mark Drakeford have told Johnson it would be "unconscionable" for him to pursue a no-deal Brexit, but senior ministers have said the government is working on the assumption that the UK will indeed leave the EU without an agreement on 31 October.
The prime minister - who has also taken the title of minister of the union in a bid to signal his commitment to keeping the four countries together - has said Britain will leave the bloc by Halloween "do or die".