While the Illyrians achieved the goal of raising Croatian national awareness by 1850, they failed elsewhere. In 1850s, the Illyrian idea was championed by the HPS and Roman Catholic bishops Josip Juraj Strossmayer and Franjo Rački. Fearing "Drang nach Osten", they believed Germanisation and Magyarisation could only be resisted through unity with other Slavs, especially the Serbs. They advocated unification of Croatia, Slavonia, and Dalmatia as the Triune Kingdom expanded to include other South Slavs in Austria (or Austria-Hungary after the Compromise of 1867) before joining other South Slavic polities in a federation or confederation. The proposed consolidation of variously defined Croatian or South Slavic lands led to proposals for trialism in Austria-Hungary accommodating a South-Slavic polity with a rank equal to the Kingdom of Hungary. Croatia and Slavonia were consolidated with the Military Frontier into Croatia-Slavonia in 1881. Nonetheless, divisions remained as it was among the Lands of the Crown of Saint Stephen – the Hungarian part of the monarchy – while Dalmatia and Istria were included in Austrian Cisleithania. There was also a significant Croatian population in Bosnia and Herzegovina annexed by Austria-Hungary in 1908. Unification of those lands became the central issue for Croatia-Slavonia politics in the trialist context.