Wargames Atlantic Prussian Reserve 1813-1815DescriptionSpecificationsShipping BEFREIUNGSKIEGE! The 1807 Treaty of Tilsit forced Prussia to constrain their army to no more than 42,000 men. They evaded the restriction by the Krmper System of cycling new recruits through the army to create a reserve of trained men. When Prussia declared war on France on 17 March 1813 (the Befreiungskriege or War of Liberation), over 40 reserve battalions were formed and organized into a dozen Reserve Infantry