title: THE MILITARY COOPERATION BETWEEN THE CRIMEAN KHANATE AND THE ZAPOROIZHIAN HOST IN THE SECOND QUARTER OF THE 17th CENTURY
abstract: The purpose of the study -analysis of the historical events associated with the development of the formation process of the military and political alliance which was in force from the time of the end of the Khotyn War till the 40s of the 17th century. The set up aim has been achieved on the base of observing the general theoretical and methodological principles of sources studying, so as to provide identification of the typical features of the above said historical events. The study methodology 
journal: Східноєвропейський історичний вісник