Captain Alastair Cook says England have their best chance to win the World Cup for the first time in 2015.
England have not reached the final since 1992, but Cook said: "The planning from the ECB has made sure we have the group fresh and ready to go.
"If we peak at the right time, I don't think anyone will want to play us."
He added: "Since 1992 we haven't done ourselves any justice in the World Cup but I am excited about playing one-day cricket where we haven't got Test cricket in the forefront."
|England's pre-World Cup schedule|
|Seven-match series in Sri Lanka: 26 November - 16 December|
|Two games against Australia, in Sydney & Hobart: 18 & 23 January|
|Two games against India, in Brisbane & Perth: 20 & 30 January|
England have won only seven of their 18 ODIs in 2014, losing a series in Australia at home to Sri Lanka and India, with only one series victory in the West Indies. In that period they reached 300 three times.
India made 404-5 against Sri Lanka on Thursday, when Rohit Sharma became the first man to score 250 in a one-day international.
Former Australia bowler Jason Gillespie, now coach of Yorkshire, said: "I don't think England will win this World Cup, unless they change the way they play.
"They need to be a bit more aggressive, certainly with their batting.
"The reality is teams are scoring more runs. England are a 250-260-runs-in-50 overs side and we've just seen Sharma score 264 on his own."
|Alastair Cook's one-day international record|
|Innings||Runs||Highest score||Average||Strike rate|
Cook said: "We haven't won over the last couple of series, so we have to improve, but it's not about a radical change of method."
England, who face Australia, New Zealand, Scotland, Sri Lanka, Bangladesh and Afghanistan in their World Cup group, are fifth in the International Cricket Council one-day rankings.
Cook's captaincy and place in the team have been questioned by former England captain Michael Vaughan, while ex-spinner Graeme Swann has said England have "no chance" of winning the World Cup.
"Do I have the tactical nous? Without a doubt," said Cook.
"I think the only time England have been number one in the world in one-day cricket was when I was captain."