In an interview published on Saturday, Biscevic said that Croatia had done nothing which would confirm some claims in Slovenia that Croatia was not credible, adding that such claims led nowhere and only prolonged the status quo in bilateral relations.
"Every mature politician in Slovenia and in Croatia must think beyond the limits of immediate interest or only of what will happen tomorrow. We must already think about the geostrategic picture of this part of Europe in five years," Biscevic was quoted as saying.
"This part of Europe that is shared by Slovenia, Italy, Austria, Croatia and Hungary will soon be included in its entirety in the Euro-Atlantic region of security and stability. All unresolved issues will become less important. Our southeastern neighbourhood is and will continue to be for some time a space of insecurity. Our current relations, which are characterised by competition, we must change into cooperation so that we can achieve common and long term interests."
Biscevic wondered what outstanding Croatian-Slovene issues would be like when Croatia joined the European Union. "The Slovene side has recently indicated readiness to assess our unresolved issues in accordance with this long term strategic picture."
He also explained Croatia's positions on the settlement of border issues.
"We have been negotiating unsuccessfully for 15 years and this has objectively tied the hands of both governments. Whatever the outcome of two-sided negotiations might be, let's say on demarcation in Savudrija Bay, the other side will think they have been damaged. Fifteen years have led us to a cul-de-sac."
Biscevic said Croatia had already sent Slovenia a proposal for arbitration and going to an international judicial body over the border dispute.
"The claims that we hear from some Slovene politicians that there is no official proposal do not stand. A concrete proposal necessitates political will to launch such a procedure. Only then will there be a pre-arbitration procedure, namely the preparation of an arbitration package on what the subject of the arbitration is, which body both sides will accept, and eventually there is the obligation to transform this agreement into a legally binding instrument," Biscevic said in the Delo interview.