The aim of this paper was to see if the concept of a military revolution is applicable to the development of the Habsburg army and state. The dramatic increase in the size of European armies and the scale of warfare left the largest impact on the Monarchy. The start of the Thirty Years' War forced the Monarchy to face these new armies and the scale of warfare for the first time. To be able to survive and effectively continue the war, the Monarchy had to adapt and undergo some fundamental changes. Because the Monarchy wasn't ready for such a conflict in a military and administrative sense, she had to use a proxy who will in her name field a large army and maintain it. Albrecht von Wallenstein assumed that role, and with his military and organizational skills, he achieved many victories in the name of the Monarchy. With the help of his army, the Monarchy suppressed the revolts which enabled the state to put those regions directly under its authority, setting the foundations for absolutist rule. The hierachical structure that he implemented in the army, adoption of linear tactics and the general professionalization of the army, enabled the state to take over a strong and well organized army after Wallenstein's assassination. After the Thirty Years' War, the Monarchy will, from that army, create a standing army under the supreme command of the Emperor itself. The army that was retained after the war was considerably larger and more professional than the one at the beggining of the conflict. With that army, the state defeated its external and internal enemies, putting the Estates and the army under a stronger central authority, increasing the power of the state itself. With that professional army and the guidance of Montecuccoli and Eugene of Savoy, the Monarchy managed to put pressure on the Ottoman Empire and reclaim lost territories. Some historians consider that a revolution in itself. Other than military and political changes, the military revolution influenced the social sphere of life as well. A professional and considerably larger army enabled for vertical social ascent because it required a larger bureaucratic apparatus, increasing the power of the state, but also professional soldiers, both which allowed commoners in its ranks. This developed a paralel civil and military stratification of society that endangered the nobility which now voluntarily put itself in the service of the state, subjecting themselves to the hierarchy of rank, just to remain „useful“. The extent of influence that these military innovations had on the state can be seen in the financial burden that these larger, professional armies and prolonged wars had on the state. The entire economy of the state was based on meeting military needs. Economic warfare became much more important and carried with itself consequences of destruction and blockading of resources causing increased devastation to the land. This motivated jurists like Hugo Grotius to attempt to limit warfare by legal means, laying the foundations of international law. It's legacy is felt even today. It's because of these changes that the revolution, primarily the factor of dramatically larger armies and scale of warfarem, had on Europe and the Habsburg Monarchy is why I think that the concept of a military revlution is applicable to the Monarchy as well. The crucial period in the history of the Habsbur Monarchy was the Thirty Years' War through which the changes of the military revolution directly affected the Monarchy. During that long and destructive conflict, the Monarchy underwent fundamental military and administrative changes which laid the foundations for it's power.