Mary Lou McDonald says Sinn Féin is up for Stormont and wants all-Ireland NHS
The DUP and both governments to needs to step forward "to resolve the issues and get government back in action" she told delegates to the party's Ard Fheis in Derry on Saturday.
But the revival of the institutions in Belfast remains conditional.
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Hide Ad"We need a good faith, purposeful engagement by political Unionism.
"Sinn Féin negotiators stand ready," she said.
The Sinn Féin leader told a packed Millennium Forum that a reunification poll is on the horizon.
"A referendum on Irish Unity will happen. It's not a question of if, but when," she declared.
"Our system is broken. We need an Irish National Health Service. That is the future," she said.