The first chunk of the 23-man Republic of Ireland squad for the EURO 2012 finals will assemble in Dublin on May 17.
Goalkeepers Keiren Westwood and David Forde along with defenders Kevin Foley, Seán St Ledger, Darren O'Dea, midfielders Darron Gibson, Keith Fahey, Stephen Hunt, James McClean as well as striker Simon Cox are the nine players due to arrive for the start of the preparations. Within a couple of days, the remainder of the panel will link up with the squad.
Following a week of training, the Republic of Ireland have their first warm-up match on May 26 when Bosnia and Herzegovina visit the Aviva Stadium for a Three international friendly. There's another friendly against Hungary on June 4 in Budapest, which comes following a week-long training camp in Montecatini, Italy that will likely involve another workout against local opposition.
"What is important is that we believe in our quality and our system," said Trapattoni on Monday. "We have work to do. We have to improve but we have to believe in what we can achieve together.
"Our identity keeps improving and we are aware of our limits, we will look to improve during our training camps in (Dublin) and Montecatini.
"There are three way to improve. Firstly to recognise our limits, second that we want to improve and - thirdly - to believe we can achieve and to never give up. Let's not forget that we have arrived (qualified) thanks to team spirit and collaboration of our players."
Ireland will approach their opening game at the tournament on June 10 against Croatia in Poznan fully prepared and aware of the stakes at play. Possibly even tougher tests follow in duels with Spain and Italy before the group stage concludes, though the manager wants his players of a mind that their destiny is within their control.
Trapattoni said: "Everyone thought that Barcelona would be win the (UEFA) Champions League but they lost. Denmark were on holidays and came back to win the European Championships before (in 1992).
"I played against the best player in the world one time, Pele. I thought I was dead. I won the game.
"Obviously - over some months - the stronger teams usually win, but 90 minutes is 90 minutes. There are games that teams can lose in an instant after a mistake. That is football.
"With every game, we confirm our confidence and belief. Only with this is it possible to achieve something."
