The Three Lions slumped to a 1-0 loss at Wembley in their final warm-up match before the tournament last week and Kane thinks the result should serve as a warning that the campaign in Germany will be far from plain sailing.

The England captain said: "Of course there will be some noise about it [losing to Iceland] but I think there is a lot of optimism from the fans and rightly so. Ultimately it is down to us to make sure we get it right on the pitch.

"This could be a nice wake-up call for everyone to realise it is not going to be as easy as people think. There is a lot of work to do."

Kane felt that England were unlucky not to find the net against Iceland as he, Cole Palmer and Anthony Gordon all had good opportunities.

He said: "It was one of those games. On another day we had three or four clear-cut chances - myself, Cole, Ant had a good chance - so we could have walked off at 3-1 or 4-1 and we would all be going into the Euros very happy."

England are relying on youngsters such as Palmer and Marc Guehi to step up at tournament level this summer but Kane has dismissed concerns about a lack of experience in the squad.

The Bayern Munich marksman said: "I think we have more than enough experience. Especially a lot of players who have played in two or three tournaments now.

"There are always going to be new players, players who deserve to be here, players who are in their first tournament. It is about making sure they feel comfortable and they feel at ease when they are training or on the pitch, just to be themselves. We have more than enough.

"The lads who have played in a lot of tournaments have to step up and be there for the ones who need a bit of help."