Previous best: Semi-finalists 1968 and 1996
Prospects: This feels like a home tournament for England, who are blessed with some generational talents. As always, injuries and hype could hold them back.
Manager: Gareth Southgate still has plenty of credit in the bank after the 2018 World Cup but needs to work out how best to utilise his formidable resources.
Key player: Phil Foden and Jack Grealish could set the tournament alight but England's hopes hinge on the fitness and form of Harry Kane.
Previous best: Quarter-finals 1996 and 2008
Prospects: Perhaps not quite the same side who reached the World Cup final in 2018, Croatia will still be dark horses this summer.
Manager: The man who took Croatia within 90 minutes of the World Cup, Zlatko Dalic steered his side to the Euros with minimal fuss.
Key player: Time moves on but Luka Modric remains in the middle – the 35-year-old recently extended his stay at Real Madrid.
Previous best: Group stages 1992 and 1996
Prospects: Welcome back. This is Scotland's first major tournament since 1998 and all eyes will be on their clash with England at Wembley on June 18th.
Manager: Steve Clarke has Scotland's best squad in a generation but has turned them into a real team, making astute additions along the way.
Key player: John McGinn is a livewire for Aston Villa and Scotland and has a penchant for the sublime – his bicycle kick against Austria an example.
Previous best: Winners 1976
Prospects: Mainstays of the Euros since 1992, and semi-finalists in 2004. Preparations have been hampered after they had to pull out of a tournament base in Scotland.
Manager: Jaroslav Silhavy took over in 2018 and the Czechs have been on the up ever since, recently earning promotion to the top tier of the Nations League.
Key player: Tomas Soucek was a revelation in the Premier League this season, the midfielder helping West Ham into sixth place and Europe.
Sunday June 13th; England vs Croatia (2pm, London)
Monday June 14th - Scotland vs Czech Republic (2pm, Glasgow)
Friday June 18th - Croatia vs Czech Republic (5pm, Glasgow); England vs Scotland (8pm, London)
Tuesday June 22nd - Czech Republic vs England (8pm, London); Croatia vs Scotland (8pm, Glasgow)