The Deputy Prime Minister insisted there could be “no more looking back” and party members should be “shouting our achievements from the rooftops”.
The exhortation comes as the Lib Dems kick off what could be another fractious spring conference in Gateshead.
Last year’s event was dominated by dissent over the coalition’s controversial health shake-up.
The legislation was “paused” as a result of the outcry and opposition from NHS workers, and has since been amended more than a thousand times.
But it is not yet clear whether the Government has done enough to placate the Lib Dem grass roots.
The conference is expected to vote to consider a topical motion on the NHS on Sunday, which could prove embarrassing for Mr Clegg.
Speaking at a rally in Gateshead this evening, the party leader will say he has never “ducked fights”.
“We’ve made some difficult decisions, not all of them popular,” he is to say.
“But we made all of them with only one test in mind: What was the right thing to do for the country?”