Liberal leader Sussan Ley and Nationals leader David Littleproud insist the pair "trust" each other after the parties agreed on a deal to reunite and reform the Coalition after a three-week split.
In a joint press conference on Sunday, the pair confirmed earlier reporting of the deal, which will allow all former Nationals frontbenchers reinstated to shadow cabinet after they were sacked or stood down for breaking solidarity conventions over hate speech laws.
Ley said the Coalition was "looking to the future, not the past".
"We are back in coalition. We are stronger. Differences have been resolved," she said.
"We're squarely focused on representing the Australian people and fighting for their needs, their aspirations and their hopes. They deserve no less. They expect no less. And they will receive no less."
When asked during the press conference about reports Littleproud had asked for Ley's resignation, and whether they trusted each other, the duo said they did.
Ley said: "Yes, 100 per cent, I trust David and I value and respect the National Party as one of the two great parties with."
"I wouldn't be standing here today if I didn't trust Susan, if I didn't trust the Liberal Party," Littleproud said.
"So I'm very comfortable and we've said to one another, this is where we can look each other in the eye and say, this is the team that will go to the next election."
Littleproud and deputy Nationals leader Kevin Hogan will immediately rejoin leadership meetings and shadow cabinet processes.
The leaders also signed an agreement codifying the convention of shadow cabinet solidarity, in which frontbenchers must step down from their roles if they vote against an agreed position of the Liberal-National joint party room.
The written agreement clearly sets out that the joint party room has primacy over the individual National and Liberal party rooms, addressing the contradiction that instigated the split.
Three Nationals frontbenchers — Ross Cadell, Bridget McKenzie and Susan McDonald — voted against Labor's hate speech laws, in line with a party decision but in defiance of an agreed shadow cabinet position to vote in favour.
The trio later tendered their resignations to Ley, which she accepted.
But the move triggered a furious response from Littleproud and the Nationals, who resigned from shadow cabinet en masse and caused the Coalition collapse.
Speaking at the press conference on Sunday, Littleproud said the fall-out was "disappointing".
"The Coalition isn't one party, but we're two parties and we've been able to work together. But when it matters, we've got to be able to say to the Australian people what we stand for.
"And that's the maturity and leadership that I thank Susan for, that we've been able to say we've got to find a better way forward."
The reunification comes during a seismic shift in Australia's right-wing political landscape, with minor-party One Nation surging past the former Coalition partners in some polls.
— With additional reporting from the Australian Associated Press.
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