While the rival railway companies at that time had no interest in a central urban solution - the present-day Vienna Hauptbahnhof finally went into operation in 2012 - the Austrian military, after the March Revolution of 1848, demanded measures to prevent a recurrence of such events. Although the commissioning of the from 1859, the from 1872 and the from 1875 provided some relief, the heavy losses of the Battle of Königgrätz in 1866 showed that further connections between the long-distance railways were needed. After 1867, only 18 kilometers of the Austrian railway network - including the Verbindungsbahn - were in state hands, so in 1874 a renewed nationalization wave began. The de-privatization of operations combined with the new connections in the capital would make it possible, in case of mobilization - especially in case of a two-front war - to move troops, weapons and ammunition more easily. But also the so-called Approvisionierungsverkehr - that is, the supply of the city and the soldiers with food - played a major role in the future of the Vienna Stadtbahn. Equally important was the possibility to connect the large inner-city barracks to the main lines in the event of war, including, in particular between 1849 and 1856, the Arsenal, built as a consequence of the March Revolution.