The country of Italy and their dictator, Benito Mussolini, were staunch supporters of the Nazi party and had some of the most active extermination camps stretched out across their borders.
The Great Divide
Mike Hogan

I beg to differ. Italy did not seek the extermination of Jews until Mussolini was deposed and the German Wermacht and SS took over in 1943.

“ Despite its alliance with Germany, the Fascist regime responded equivocally to German demands first to concentrate and then to deport Jews residing in Italian occupation zones in Yugoslavia, Greece, and France to killing centers in the German-occupied Poland. Italian military authorities generally refused to participate in mass murder of Jews or to permit deportations from Italy or Italian-occupied territory; and the Fascist leadership was both unable and unwilling to force the issue.”