"It is always special playing for the national team, a special moment and time. It was a pity that we didn't win through to the final because we started really well, but that's football and we have to put it together and think about next time."
Kalou scored three goals in the tournament but managed to keep in touch with Chelsea's progress in England while he was away.
He added: "Every time Chelsea had a game we asked for the score and saw the game when we could.
"I saw a couple while I was out there against Tottenham and Wigan. The team did well, kept winning games, and now we are back I hope the team is stronger."