England's ruthless streak has been on display during the Ashes, where they are an unbeatable 3-0 up against Australia heading into this week's final Test at The Oval in south London.
And fast-bowling all-rounder Broad, who credits a spell in Australian grade cricket with having made him a more hardened player, believes the entire approach of the England side under coach Andy Flower and captain Alastair Cook has been key to their success.
"There's one thing for sure about this England team and that's we're tough," Broad, the hero of the 74-run fourth Test win at Chester-le-Street with a match-winning spell of six for 50 on the last day, said Monday.
"There's no doubt the country is proud of this team and what we've achieved because fans like winning teams. We want to win and make them happy.
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"We do have a win at all costs mentality. I think we're quite an unpleasant team to play against at the moment.
"Teams won't play against us and enjoy the experience. That's what we want.
"You always have a responsibility to the fans and youngsters because you're role models. You have to play hard but fair, that's how the spirit of the game is defined.
England are now one win away from claiming four victories in a home Ashes for the first time and Broad said: "There's a huge hunger in the team and there's no bigger carrot than being the first (England) team to beat Australia 4-0.