The regular Austro-Hungarian army, meaning the Imperial and Royal Army, was the joint army of the Austro-Hungarian monarchy. Together with the divisions of Landwera, Honwed and Landsturm, it formed the land forces of the Danube monarchy (Ger. Landstreitkrräfte). This army was based on the principle of universal military service for men. In 1912, the rules of conscription were changed, according to which a soldier in active service was to serve 2 years, in the case of service in horse artillery and cavalry - 3 years. On the other hand, the duration of the provision was set at 10 and 7 years, respectively. The porób concerned all men aged 19-50 or 55 in Hungary. On the eve of World War I, it was assumed that Austria-Hungary, after universal mobilization, would raise an army of approximately 1.8 million people, compared to approximately 2.8 million in the German army and nearly 3.5 million in the Russian army. In August 1914, 6 armies were mobilized, divided into 18 army corps, which in total corresponded roughly to the mobilization plans. A single corps usually consisted of two infantry divisions and one division of Landszturm or Honved. This also includes: sapper and communications sub-units and an artillery component consisting of 8 150 mm guns.