The British Prime Minister Boris Johnson has said the UK must "renew the ties" between its four nations to ensure a bright post-Brexit future.
The Conservative Party leader is heading 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 stg£300m (€269.7m) funding pot for communities in Scotland, Wales and Northern Ireland.
It is seen as a bid to allay fears over a break-up of Britain 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, Mr 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."
Downing Street has said that visits to Wales and Northern Ireland will follow his trip to Scotland, with the latter to be focus on the ongoing talks to restore devolution at Stormont.
There has been no government in Northern Ireland since January 2017 because of disagreements between the DUP and Sinn Féin, with attempts to restore their power-sharing agreement having proved fruitless.
Scotland is also facing an uncertain future, with First Minister Nicola Sturgeon considering the timetable for when there could be another independence referendum.
She told Scottish MPs in April that the case for independence was now "stronger than ever".
She also retweeted an advert from her party's 'Yes Scot' campaign.
Westminster isn’t working for Scotland. We’ve been ignored too often. It’s time for a fresh start – to choose a different and better path.
— Yes (@YesScot) April 24, 2019
Both Ms Sturgeon and her Welsh counterpart, Mark Drakeford, have told Mr Johnson it would be "unconscionable" for him to pursue a no-deal Brexit.
But senior ministers have said the government there is working on the assumption that the UK will leave the EU without an agreement on October 31st.