CONSTRUCTION AND START OF OPERATION OF STRATEGIC RAILWAYS WITHIN VISTULA REGION IN THE 80S - THE BEGINNING OF THE 90S OF THE XIX<sup>TH</sup> CENTURY
The author covers the history of the railways of military-strategic purpose constructed in the era of Emperor Alexander III (1881-1894), studies the basic problems of the design and construction of Sedlec-Malkin and Brest-Chelm lines in Vistula region. The question of the lines lend-lease to Warsaw-Terespol Railway Society was solved practically as early as during the construction. In consequence of the unsuccessful operation in 1892 there occurred the transition of this road under state administration. The implementation of the necessary actions on the improvement and strengthening of Warsaw-Terespol railway strategic purpose had positive impact on its future development and more efficient operation.