The three presidents state that each of their countries cherishes memories of sufferings they have experienced and of sufferings of victims of blind violence in the past.
However, they are looking ahead to the future which is being built in a unified Europe "that embodies many traditions and is increasingly intertwined in addressing new globalisation challenges," their joint statement read.
Josipovic, Napolitano and Tuerk will attend a concert of young artists from the three countries under the baton of Italian conductor Riccardo Muti.
We, presidents of Croatia, Italy and Slovenia, respond with pleasure to the invitation of Maestro Muti to come to that concert of friendship in Trieste on 13 July, being aware of the importance of the message of peace and brotherhood being sent by this initiative, the joint statement read.
Before the concert the three presidents will hold wreath-laying ceremonies at the community centre in Trieste which was burnt down on 13 July 1920 and at the monument erected in memory of many people who fled their homes in Istria, Rijeka nad Dalmatia, according to the statement.
By this act the presidents want "to pay tribute to tragedies from the past" in the spirit of the joint efforts to build "a future permeated by freedom and fruitful cooperation" between their countries and their peoples in a united Europe.
The presidents state that in this way they would like to reaffirm their strong commitment to see to it that what unites these three countries may prevail over what divided them in difficult historical periods marked by wars among states and peoples.
Today, Croatia, Italy and Slovenia are placed in the context of the European Union, which the statement describes as "a natural promoter of the respect for differences and of the spirit of coexistence of peoples, cultures and languages that successfully lived together for centuries."
This is the basis for the three countries' commitment to the respect of rights of all minorities, the presidents state in their joint statement.