Jeremy Corbyn says he's ready to take the fight to Boris Johnson and will be "delighted" when the election comes.
He told a crowd in Salford: "I'm ready for it, you're ready for it, we're ready for it.
"We'll take the message out there and above all we will win for the people of this country."
Mr Corbyn said no-deal meant "damage and danger" to the peace process in Northern Ireland.
He also spoke about the challenges of climate change and the impact of the Government's austerity measures.
It comes as Boris Johnson is set to publicly announce plans tomorrow for an October 14 general election in a final threat to force Tory Brexit rebels to back down.
Sources unveiled the bombshell move tonight after the Prime Minister issued a final ultimatum to Tories not to block no-deal Brexit.
Mr Corbyn said: "Whenever this campaign begins, and you never know it might be almost upon us, we know what we've got to do.
"We've got to be united as a party and a movement, united in our determination to prevent a no-deal Brexit, for ensuring we come to an agreement in the future but deal with the injustice and the inequalities that exist in Britain and unite people around our programme which is one of delivering the houses, the jobs, the schools, the hospitals and above all that sense of hope in our community."
Johnson's shock move opens the door to the first Monday general election in decades - and the third election since 2015 - in a shameless U-turn weeks after Mr Johnson branded a snap poll "the height of folly".
The brazen Prime Minister tonight said he'd be forced to call a poll if talks with the EU are deadlocked. Yet he tried to shift the blame to MPs - with sources saying it would be their fault for siding with Jeremy Corbyn .
