As late as the 1990's the MSI/AN in Trieste was talking about taking back Istria, Fiume, etc.
"I got a chance to see the League's competition in Trieste up close when I stopped by the MSI offices as December's local election results came in. On the wall were posters calling for a "new irredentism," illustrated with pen-and-ink sketches of Dalmatian cities -- Fiume (now Rijeka), Zara (Zadar).
"Roberto Menia, a national coordinator for MSI, openly said the party would take advantage of the relative weakness of Slovenia and Croatia to redraw the borders. "We have struggled for 50 years," he said, 'and now that we are stronger we will renegotiate everything, borders included. We want the territories we had before the war." If necessary, the party would cooperate with the Serbs, Menia said, pointing out that his party's president had already visited Belgrade. "We know that our own interests and the interests of the Serbs can fit together."
"With that sort of memory in the air, the League in Trieste concentrates on the future. "They the MSI) want to put our Italian flag on Istria, Fiume and Dalmatia again. I think that's a nineteenth century way to think," Fabrizio Belloni, head of the League's office in Trieste at the time of my visit, said. "If I were a solider and I got back Istria for Italy there would not be one more ship in our gulf."..."
http://www.icwa.org/wp-content/uploads/2015/09/CRR-15.pdf
Indeed in 1996, "THE Italian flag and that of the Istria region flew at half mast outside the Trieste party headquarters of the neoFascist Alleanza Nazionale last week.
"The mourning signs were a symbolic protest at the "association agreement" concluded on June 10th in Luxembourg between the European Union and Sloveuia, the former Yugoslav republic which shares a land border with Italy. Trieste is just a few kilometres from that border."
https://www.irishtimes.com/news/italy-bandages-old-wounds-in-agreement-with-slovenia-1.60403