Manager: Franciszek Smuda
Star man: Wojciech Szczesny - The Arsenal goalkeeper has become increasingly commanding between the posts at both club and international level.
Dark horse: Robert Lewandowski - A promising young striker with Borussia Dortmund, a clinical finisher when given the opportunity.
How they qualified: Well, as co-hosts they automatically qualified for the tournament so it hasn't taken a great deal of effort on the field.
Euros best: They have qualified for the tournament just once, last time around when they finished bottom of their group.
Did you know? Legendary striker Zbigniew Boniek was nicknamed "beauty at night" by his former president at Juventus Gianni Agnelli because of his ability to shine in evening matches.
Squad: Goalkeepers - Wojciech Szczesny (Arsenal), Przemysyaw Tyton (PSV Eindhoven), Grzegorz Sandomierski (Genk).
Defenders - Sebastian Boenisch (Werder Bremen), Marcin Kaminski (Lech Poznan), Damien Perquis (Sochaux), Lukasz Piszczek (Borussia Dortmund), Marcin Wasilewski (Anderlecht), Jakub Wawrzyniak (Legia Warszawa), Grzegorz Wojtkowiak (KKS Lech Poznan).
Midfielders - Jakub Blaszczykowski (Borussia Dortmund), Dariusz Dudka (Auxerre), Kamil Grosicki (Sivasspor), Adam Matuszczyk (Fortuna Dusseldorf), Adrian Mierzejewski (Trabzonspor), Rafal Murawski (Lech Poznan), Eugen Polanski (Mainz), Ludovic Obraniak (Bordeaux), Maciej Rybus (Terek Grozny), Rafal Wolski (Legia Warszawa).
Forwards - Pawel Brozek (Celtic), Robert Lewandowski (Borussia Dortmund), Artur Sobiech (Hannover).
Manager: Fernando Santos
Star man: Giannis Fetfatzidis - The 21-year-old is the one true creative spark in a side renowned for its workmanlike performances.
Dark horse: Kyriakos Papadopoulos - Just 20, he has become integral in defence for Schalke and last year forced his way into the Greek national side, with two goals to his name in seven appearances.
How they qualified: Defence is always the key for Greece but Santos' keen promotion of youth has seen them add some attacking pizzazz. In a financially ruined nation desperate for some good news, Greece could yet spring a surprise having topped their qualifying group without defeat, beating Croatia in the process.
Euros best: Champions (2004)
Did you know? Striker Giorgos Samaras' idols growing up were Marco van Basten and the former basketball player Michael Jordan.
Squad: Goalkeepers - Kostas Chalkias (PAOK), Michalis Sifakis (Aris Thessaloniki), Alexandros Tzorvas (Palermo).
Defenders - Vassilis Torossidis (Olympiacos), Kyriakos Papadopoulos (Schalke), Sokratis Papastathopoulos (Werder Bremen), Avraam Papadopoulos (Olympiacos), Jose Holebas (Olympiacos), Giorgos Tzavellas (Monaco), Stelios Malezas (PAOK).
Midfielders - Kostas Katsouranis (Panathinaikos), Giorgos Karagounis (Panathinaikos), Giannis Maniatis (Olympiacos), Giorgos Fotakis (PAOK), Grigoris Makos (AEK Athens), Giannis Fetfatzidis (Olympiacos), Sotiris Ninis (Panathinaikos), Kostas Fortounis (Kaiserslautern).
Forwards - Dimitris Salpingidis (PAOK), Giorgos Samaras (Celtic), Fanis Gekas (Samsunspor), Nikos Liberopoulos (AEK Athens), Kostas Mitroglou (Atromitos).
Manager: Dick Advocaat
Star man: Pavel Pogrebnyak - Fulham's in-form hit man can upstage the likes of Andrei Arshavin. His goal-scoring record could be improved at international level but his confidence is clearly high.
Dark horse: Igor Akinfeev - He rarely puts a foot wrong in between the posts. Russia's strong defensive record is built upon his unflappability.
How they qualified: A bit of a stop-start campaign for an ageing squad. A home defeat to Slovakia and goalless draw with Armenia won't be remembered with any fondness. A lack of goals could prove a problem. They still topped their group two points clear of the Republic of Ireland.
Euros best: Champions (1960)
Did you know? Russian national coach Advocaat is nicknamed 'the Little General'.
Squad: Goalkeepers - Igor Akinfeev (CSKA Moscow), Vyacheslav Malafeev (Zenit St Petersburg), Anton Shunin (Dinamo Moscow).
Defenders - Aleksandr Anyukov (Zenit St Petersburg), Aleksei Berezutski (CSKA Moscow), Sergei Ignashevich (CSKA Moscow), Vladimir Granat (Dinamo Moscow), Yuri Zhirkov (Anzhi Makhachkala), Dmitri Kombarov (Spartak Moscow), Roman Sharonov (Rubin Kazan), Kirill Nababkin (CSKA Moscow).
Midfielders - Igor Denisov (Zenit St Petersburg), Konstantin Zyryanov (Zenit St Petersburg), Roman Shirokov (Zenit St Petersburg), Denis Glushakov (Lokomotiv Moscow), Igor Semshov (Dinamo Moscow), Marat Izmailov (Sporting), Alan Dzagoev (CSKA Moscow).
Forwards - Andrey Arshavin (Arsenal), Aleksandr Kerzhakov (Zenit St Petersburg), Aleksandr Kokorin (Dinamo Moscow), Roman Pavlyuchenko (Lokomotiv Moscow), Pavel Pogrebnyak (Fulham).
Manager: Mical Bilek
Star man: Tomas Rosicky - The Arsenal midfielder was back to his creative best this season as Gunners flourish following an awful start.
Dark horse: Tomas Necid - The CSKA Moscow frontman is just 22 but is becoming a growing threat as Bilek shows great confidence in him.
How they qualified: The Czech Republic failed to make it out of their qualifying group because of a mixed campaign. In the end, they lined up against Montenegro in the play-offs and victory ensured their tournament berth.
Euros best: Winners (1976)
Did you know? Rosicky is a proficient guitarist, and has played live with Tri Sestry. He honed his guitar skills during 18 months on the sidelines with a hamstring injury.
Squad: Goalkeepers - Petr Cech (Chelsea), Jaroslav Drobny (Hamburg) , Jan Lastuvka (FC Dnipro Dnipropetrovsk).
Defenders - Theodor Gebre Selassie (Slovan Liberec), Roman Hubnik (Hertha Berlin), Michal Kadlec (Bayer Leverkusen), David Limbersky (Viktoria Plzen), Tomas Sivok (Besiktas), Marek Suchy (FC Spartak Moscow).
Midfielders - Vladimir Darida (Viktoria Plzen), Tomas Hubschman (Shakhtar Donetsk), Petr Jiracek (Wolfsburg), Daniel Kolar (Viktoria Plzen), Milan Petrzela (Viktoria Plzen), Vaclav Pilar (Wolfsburg), Jaroslav Plasil (Bordeaux), Frantisek Rajtoral (Viktoria Plzen), Tomas Rosicky (Arsenal).
Forwards - Milan Baros (Galatasaray), David Lafata (FK Jablonec), Tomas Necid (CSKA Moscow), Tomas Pekhart (FC Nurnberg), Jan Rezek (Anorthosis Famagusta).