Manager: Oleg Blokhin
Star man: Andriy Shevchenko - He may not be the player that once starred for AC Milan but he's still a menace in what will undoubtedly be his last displays for his country.
Dark horse: Andriy Yarmolenko - Just 22, he is in the relative infancy of his international career but has already starred, scoring on his debut and again in a recent friendly against Germany.
How they qualified: As co-hosts, their qualification for the tournament was guaranteed along with that of Poland.
Euros best: It's their first appearance in the tournament
Did you know? Shevchenko met his wife, the American model Kristen Pazik, at a Giorgio Armani after party in 2002, and Silvio Berlusconi is the godfather to the couple's first son, Jordan.
Squad: Goalkeepers - Oleksandr Goryainov (Metalist Kharkiv), Maxym Koval (Dynamo Kiev), Andriy Pyatov (Shakhtar Donetsk).
Defenders - Bohdan Butko (Illychivets Mariupil), Olexandr Kucher (Shakhtar Donetsk), Taras Mikhalik (Dynamo Kiev), Yaroslav Rakitskiy (Shakhtar Donetsk), Yevhen Selin (Vorskla Poltava), Yevhen Khacheridi (Dynamo Kiev), Vyacheslav Shevchuk (Shakhtar Donetsk).
Midfielders - Olexandr Aliyev (Dynamo Kiev), Denys Garmash (Dynamo Kiev), Oleh Gusev (Dynamo Kiev), Yevhen Konoplyanka (Dnipro Dnipropetrovsk), Serhiy Nazarenko (Tavriya Simferopol), Ruslan Rotan (Dnipro Dnipropetrovsk), Anatoliy Tymoshchuk (Bayern Munich), Andriy Yarmolenko (Dynamo Kiev).
Forwards - Andriy Voronin (Dynamo Moscow), Marko Devic (Shakhtar Donetsk), Artem Milevskiy (Dynamo Kiev), Yevhen Seleznyov (Shakhtar Donetsk), Andriy Shevchenko (Dynamo Kiev).
Manager: Erik Hamren
Star man: Zlatan Ibrahimovic - Opinion remains heavily divided on Sweden's strike talisman but he is still capable of moments of brilliance. If he's firing, the Swedes will be too.
Dark horse: Olof Mellberg - Expect him to be barking out instructions in defence and proving the commander of the back four once again. He can also occasionally pop up with the odd goal.
How they qualified: Confidence will be high in the Swedish camp after they guaranteed automatic qualification with a 3-2 victory over the Netherlands in their final match. They had previously been trounced 4-1 by the Dutch, just one of two defeats in their campaign.
Euros best: Semi-finals (1992)
Did you know? Sweden thumped Norway 11-3 in their first ever international in 1908.
Squad: Goalkeepers - Andreas Isaksson (PSV Eindhoven), Johan Wiland (F.C. Copenhagen), Par Hansson (Helsingborg).
Defenders - Mikael Antonsson (Bologna), Andreas Granqvist (Genoa), Olof Mellberg (Olympiacos), Jonas Olsson (West Brom), Martin Olsson (Blackburn Rovers), Behrang Safari (Anderlecht), Mikael Lustig (Celtic).
Midfielders - Emir Bajrami (FC Twente), Rasmus Elm (AZ Alkmaar), Samuel Holmen (Istanbul BB), Kim Kallstrom (Lyon), Sebastian Larsson (Sunderland), Anders Svensson (IF Elfsborg), Pontus Wernbloom (CSKA Moscow), Christian Wilhelmsson (Al-Hilal).
Forwards - Johan Elmander (Galatasaray), Tobias Hysen (IFK Goteborg), Zlatan Ibrahimovic (AC Milan), Markus Rosenberg (Werder Bremen), Ola Toivonen (PSV Eindhoven).
Manager: Laurent Blanc
Star man: Franck Ribery - He shone during Bayern's impressive Champions League campaign and will be looking to repeat that form for his country. His sniping runs and link-up with Karim Benzema will be integral for the often-stuttering French.
Dark horse: Yohan Cabaye - It's unclear where Cabaye ranks in France after moving to the Premier League and Newcastle for this season. But his understated work for the Toon has been very impressive.
How they qualified: Things started badly with an opening 1-0 defeat against Belarus but Blanc has since steadied the ship. The goals didn't exactly come thick and fast at either end in France's games despite some fairly lacklustre qualifying opposition.
Euros best: Champions (1984, 2000)
Did you know? France's assocation as a nation with the cockerel dates back to the Middle Ages, and is due to the play on words in Latin between Gallus (an inhabitant of Gaul) and gallus (cockerel).
Squad: Goalkeepers - Cedric Carrasso (Bordeaux), Hugo Lloris (Lyon), Steve Mandanda (Marseille).
Defenders - Gael Clichy (Manchester City), Mathieu Debuchy (Lille), Patrice Evra (Manchester United), Laurent Koscielny (Arsenal), Philippe Mexes (AC Milan), Adil Rami (Valencia), Anthony Reveillere (Lyon).
Midfielders - Yohan Cabaye (Newcastle United), Alou Diarra (Marseille), Florent Malouda (Chelsea), Marvin Martin (Sochaux), Blaise Matuidi (Paris Saint-Germain), Yann M'Vila (Stade Rennais), Samir Nasri (Manchester City), Hatem Ben Arfa (Newcastle United), Franck Ribery (Bayern Munich), Mathieu Valbuena (Marseille).
Forwards - Karim Benzema (Real Madrid), Olivier Giroud (Montpellier), Jeremy Menez (Paris Saint-Germain).
Manager: Roy Hodgson
Star man: Wayne Rooney - He's missing the opening two games through suspension, but if all goes to plan and England qualify from their group then Rooney will play an integral role. One of the few world-class stars in the set-up.
Dark horse: Alex Oxlade-Chamberlain - The comparison with Theo Walcott's selection at the 2006 World Cup is natural, but Hodgson insists 'The Ox' will be an important player during the tournament. He may be an unknown quantity at international level, but the fearless 18-year-old has the potential to make a major breakthrough on the big stage.
How they qualified: England topped their qualifying group under previous manager Fabio Capello although twice came unstuck against Montenegro, in a goalless draw at Wembley and a 2-2 draw away.
Euros best: Semi-finals (1996)
Did you know? Hodgson is a keen reader and his favourite novelists include Pulitzer winner Philip Roth, whose leading titles include The Ghost Writer and American Pastoral.
Squad: Goalkeepers - Joe Hart (Manchester City), Robert Green (West Ham), Jack Butland (Birmingham City).
Defenders - Leighton Baines (Everton), Gary Cahill (Chelsea), Ashley Cole (Chelsea), Glen Johnson (Liverpool), Phil Jones (Manchester United), Joleon Lescott (Manchester City), John Terry (Chelsea), Phil Jagielka (Everton)
Midfielders - Stewart Downing (Liverpool), Steven Gerrard (Liverpool), Frank Lampard (Chelsea), James Milner (Manchester City), Alex Oxlade-Chamberlain (Arsenal), Scott Parker (Tottenham Hotspur), Theo Walcott (Arsenal), Ashley Young (Manchester United).
Forwards - Andy Carroll (Liverpool), Jermain Defoe (Tottenham Hotspur), Wayne Rooney (Manchester United), Daniel Welbeck (Manchester United).