Prime minister Boris Johnson and Irish Taoiseach Leo Varadkar will visit Belfast on Monday to mark the return of the Stormont executive.
Both men will meet with first minister Arlene Foster and deputy first minister Michelle O’Neill to discuss the Assembly’s future strategy and priorities going forward.
Stormont’s five main parties were able to form a new power-sharing government on Saturday, agreeing a deal which guarantees extra funding for Northern Ireland.
After the collapse of the Assembly in January 2017 over a green energy scandal, the deal titled New Decade, New Approach finally saw the return of devolution after months of negotiations between Northern Ireland's parties and the British and Irish governments.
Northern Ireland's five main parties the DUP, Sinn Féin, Alliance, the SDLP and the UUP have joined the restored executive, with its 90 members meeting for their first sitting on Saturday where new executive ministers were appointed.
Stormont's first meeting is expected to be held on Tuesday.
Johnson hailed the restoration of Stormont as a “historic time” for Northern Ireland, saying: “I look forward to meeting with the new executive and hearing about their plans for the future, including driving forward much needed reforms to public services and resolving the current health strike.”