Kari Arnason is aiming to have a run in Europe and win trophies after re-joining the Dons.
The 60-times capped Icelandic international is back at Aberdeen after leaving Cypriot club AC Omonia and has signed a one-year contract at Pittodrie.
Arnason was previously with the Reds for the 2011/12 season under Craig Brown and became a cult hero among the Red Army.
Earlier this week, the defender, who can also play in midfield, agreed an early release from his contract with Omonia.
And last week he exclusively revealed to the Evening Express he wanted to return to Aberdeen. He is manager Derek McInnes’ sixth summer signing and will bolster the Reds’ defence.
Although Arnason is ineligible to face Siroki Brijeg in Bosnia on Thursday in the second leg of the Europa League second qualifying round, he hopes the Dons can get through and have a run in Europe.
He is also aiming to win trophies this term and said: “It’s very good to be back, I’m very happy to have made this move.
“It’s been a journey since I left in 2012 and I’ve learned a lot and gained a lot of experience both in Europe and at domestic level and hopefully I can bring some of that to the table.
“I’m hoping we get a chance in Europe this year and hopefully we can get a result away on Thursday to get through.
“The target is to win trophies and that should always be the aim, Celtic do have a very good team and it will be difficult but I think it’s possible.”
Aberdeen drew 1-1 with Siroki at Pittodrie on Thursday but, if they can get through, Arnason looks set for a swift return to Cyprus.
If the Reds progress, they will face either Apollon Limassol of Cyprus or Zaria Balti of Moldova, but it looks likely to be the Cypriots as they lead 3-0 from the first leg.
Arnason revealed he first heard about the possibility of a move two weeks ago and said that his popularity with the fans was a factor in returning.
He added: “As soon as I heard I told my agent to get on it and make it happen.
“With the clubs it has been a difficult process but we got there in the end and I’m very happy.
“It’s always good to feel welcome, it puts a lot more pressure on me but hopefully I’ll stand tall and do well.
“But the fans definitely played a big role.”
Following the departure of Ash Taylor at the end of last season, Dons boss McInnes was keen to sign a defender to bolster his squad.
Arnason has vast experience.
He left Pittodrie for then-English Championship club Rotherham United. He moved to Malmo in Sweden in 2015, where he won the Swedish title and played in the Champions League, before heading for Cyprus in January.
He was also a key player for Iceland at Euro 2016, helping them to a famous 2-1 victory over England in the last-16 and keeping Cristiano Ronaldo quiet during a 1-1 group stage draw with Portugal.
Aberdeen also aim to secure Motherwell striker Louis Moult and have had bids of £400,00 and £250,000 rejected. It is understood ‘Well want at least £500,000.
Motherwell boss Stephen Robinson said: “It’s very, very simple. Louis is a Motherwell player, he is contracted to us.
“If somebody bids an acceptable offer that we think is a good deal for the club and Louis, then we will look at it.
“Until then Louis is a Motherwell footballer and he will be 100 per cent committed to doing well.
“We’re not letting it become a circus and Louis is very comfortable with that.
“I speak to Louis on a daily basis.
“We are desperate to keep him, we have offered a contract and, if Louis chooses not to sign it, so be it, that’s the player’s right.”