Frano Supilo

While at the outbreak of the World War I Supilo cordially supported the Allied cause, he protested the secret Treaty of London which gave Italy most of Croatia's islands and several of her coastal and inland territories.

Supilo insisted on equality of the states within the future Yugoslav federation. This was at odds with Pašić (Serb delegation leader) whose Serbo-monarchic policy was supported by the majority.  Supilo resigned in 1916.

Still believing that the unification of equal South-Slav states  is possible, on July 20, 1917 Supilo endorsed the Declaration of Corfu by which the kingdom of Croats, Serbs, and Slovenes would be formed.

Frano Supilo passed away in London on November 23, 1917.

*Freidjung Affair
When Supilo drew up the Rijeka Resolution hoping to draw anti-Austrian Hungarians to his cause, the empire's authorities provided the publicist H. Friedjung with documents alleging that Supilo and his associates were working on behalf of Serbia. Supilo sued Friedjung and the trial of 1909 demonstrated that the documents were forgeries.

*Treaty of London
A secret treaty signed on June 26, 1915 by Great Britain, France and Russia on one side and Italy on the other. It obligated Italy to fight against her Allies Austro-Hungary and Germany while, in turn, she would acquire some Croatian territories including most of her islands.

Bogišić  Bukovac  Pattiera

During the summer of 1914 he emigrated first to Italy then to England. He continued  dedicating his best efforts to liberating the South Slavs from the Austro-Hungarian oppression and to forming a Yugoslav (South-Slav) federation.

With the said ends in mind, together with the Croatian politician Ante Trumbić and a famous sculptor Ivan Meštrović, Supilo  founded the Yugoslav Committee in 1915.

Supilo presided over the coalition until 1909 when, after the Friedjung affair, he had conflicted with the opportunistic majority led by Pribičević and resigned.

During the summer of 1914 he emigrated first to Italy then to England. He continued dedicating his best efforts to liberating the South Slavs from the Austro-Hungarian oppression and to forming a Yugoslav (South-Slav) federation.