Roy Hodgson has high hopes for his side after reaching the European Championships with a perfect qualifying record, but sterner tests await in France this summer.
The odds suggest England will beat Russia and Slovakia - while drawing against Wales - to top Group B and progress to the knockout stages of the competition.
The likely opponents awaiting the Three Lions in the last 16 are Ukraine, before a quarter-final against Cristiano Ronaldo and Portugal.
Things get a little trickier in the semis as England are drawn reigning European champions Spain - and it doesn't get easier if England reach the final.
The most likely scenario for England reaching the last two would see a massive clash with world champions Germany - a re-match of the 1966 World Cup, which remains England's only major trophy success.
The Three Lions face two more warm-up games - against Australia on May 27 before taking on Portugal on June 2 - while Hodgson must confirm his 23-man squad for Euro 2016 by May 31.
England provisional squad in full
Keepers: Joe Hart (Manchester City), Fraser Forster (Southampton), Tom Heaton (Burnley).
Defenders: Ryan Bertrand (Southampton), Gary Cahill (Chelsea), Chris Smalling (Manchester United), Nathaniel Clyne (Liverpool), Danny Rose (Tottenham), Kyle Walker (Tottenham), John Stones (Everton).
Midfielders: Dele Alli (Tottenham), Eric Dier (Tottenham), Jack Wilshere (Arsenal), Jordan Henderson (Liverpool), James Milner (Liverpool), Adam Lallana (Liverpool), Fabian Delph (Manchester City), Raheem Sterling (Manchester City), Danny Drinkwater (Leicester City), Andros Townsend (Newcastle United), Ross Barkley (Everton).
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Strikers: Harry Kane (Tottenham), Wayne Rooney (Manchester United), Jamie Vardy (Leicester City), Marcus Rashford (Manchester United), Daniel Sturridge (Liverpool).
