The Solomon Islands Court of Appeal has ordered Prime Minister Jeremiah Manele to recall parliament and end the nation's ongoing political impasse.
The dismissal of the government's appeal on Friday forces Mr Manele to face a motion of no confidence over his leadership as the head of the Melanesian archipelago.
Following the court's decision and to ease public tensions, Mr Manele confirmed he would comply with the court's orders.
"The Prime Minister looks forward to the motion of no confidence being debated on the floor of parliament when it sits," a statement read.
"He notes that the formal grounds for the motion will be presented in Parliament in accordance with parliamentary procedures, allowing for full debate and consideration."
Mr Manele also thanked the public for their understanding and patience during what has been weeks of political turmoil leading up to final ruling.
"He acknowledges and thanks the churches and all those who have offered prayers and support during this time," the statement added.
Amid a heightened police presence in Honiara the three appeal judges upheld the ruling of Chief Justice Sir Albert Palmer in the Solomon Islands High Court last month.
The ruling is the latest in a series of court action following Mr Manele's refusal to reconvene parliament following mass defections from his coalition government back in March.
Opponents of Mr Manele's leadership celebrated the decision.
"The court of appeal ruled that the Prime Minister must take all necessary steps before the 7th of May to call parliament," lawyer representing the opposition parties, Gabriel Suri, said outside court.
Solomon Islands attorney general John Muria expressed resignation from the ruling by accepting the Court of Appeal's decision.
The verdict comes after several weeks of process delaying from the minority government which also included the Governor-General refusing to legally recall parliament.
"I still yet have to go through the whole judgement and then advise the Prime Minister on what (are) the appropriate steps to take," Mr Muria told the Solomon Business Magazine.
Last month Mr Muria described the opposition's attempts to unseat the government through the court was a "futile exercise".
He also applied to have the case struck out, which was an interpretation of the Solomons Islands' constitution.
The decision comes amid accusations the Prime Minister attempted to bribe his way into retaining power in government after the opposition coalition alleged government lobbyists offered rival MPs "huge money" in what they said was a blatant attempt to "buy political allegiance".
After the recent mass walkout of government ministers and MPs the verdict brings the nation one step closer to a political resolution which dates back to March.
The coalition of opposition parties claim to have the support of up to 28 MPs of the 50-seat parliament.
However, attempts to convert those numbers into a transition of power has been thwarted by Mr Manele's refusal to face a leadership vote on the floor.
In ruling on a judicial review brought by the new coalition against Mr Manele's refusal to call a sitting, Chief Justice Palmer said the Prime Minister was under a "constitutional duty" to ensure a motion of no confidence was brought before parliament at the earliest opportunity and that not doing so is "unlawful".
It effectively means after the Prime Minister failed to call parliament when the Governor-General should have done so, the speaker is ordered to ensure the motion of no confidence is given an immediate priority.
Solomon Islands governments have been historically characterised by complicated and unstable parliamentary coalitions.
They are subject to frequent votes of no confidence where both government leadership and cabinet changes are commonplace.
