Članak daje pregled arhivskih fondova i zbirki nastalih radom paradržavnih civilnih i vojnih ustanova (i postrojbi) pobunjenih Srba na okupiranom području Republike Hrvatske: skupštine i vlade Republike Srpske Krajine, pripadajućih ministarstava, pravosudnih i upravnih tijela na lokalnoj razini, političkih stranaka i udruga, te zonskih štabova i njihovih sljednika, korpusā Srpske vojske Krajine. Prikazano je i gradivo nastalo radom Jugoslavenske narodne armije, pohranjeno u Centru, koja je u vremenu svoje transformacije prešla i u Vojsku Republike Srpske Krajine, kao i u Vojsku Republike Srpske. Oblikovani arhivski fondovi i zbirke većim dijelom pripadaju cjelini arhivskog gradiva Republike Srpske Krajine (Srpske Autonomne Oblasti Krajine), prikupljenog nakon oslobodilačkih vojno-redarstvenih operacija Bljesak i Oluja. This article provides an overview of archival holdings and collections of the civic and military institutions of the para-state of the rebel Serbs in the Republic of Croatia in the period from 1990 to 1995, that is to say the archival records set up in the occupied territory of the Republic of Croatia as well as those of the JNA (Yugoslav People’s Army). At issue are the materials that were the result of the work of the “Republic of Serbian Krajina”, of its parliament, government, ministries, judicial authorities and governing bodies at the local level as well as that of the political parties and associations, the corps of the Serbian Army of Krajina and its predecessors (zone headquarters). In other words, on the basis of stored archival materials, a review of the activities of the JNA, of its transformation and role during the aggression against Croatia is provided. The contents of the archival holdings of the institutions of the “Republic of Serbian Krajina” indicate the intention of their creators and their focus on the partition of the territory of the Republic of Croatia and annexing a part to the Republic of Serbia and Yugoslavia. The materials were collected after the military-police liberating operations Bljesak and Oluja, and then transferred to the Croatian State Archive and at the end of 2005 to the Croatian Memorial-Documentation Centre of the Homeland War.