Bitka na Drini ("Battle of Drina") is a sublimation of a chess-like games, like Parchesi and Risk, which in educative form and true to historical facts, place the players in a commanding role of the Austro-Hungarian Balkan Army or rather the Royal Serbian Army (with help of the Montenigrin Sandžak Army Division) with each other. In the heat of the battle, players have the opportunity to directly command the Austro-Hungarian Balkan Army - the Austro-Hungarian 5th (VII and XIII Corps), 6th (XV and XVI Corps), and parts of the 2nd Army (parts of the IX Corps), unique rebellions and the Danube River Flotlla aka the Serbian I, II and III Armies, the Užice Army Corps, the Army of Bosnia and Herzegovina, the Braničevo Detachment, the Belgrade Defense Command, the Serbian Army Artillery Reserve and the Montenegrin Sandžak Army - ALL AT THE LEVEL OF BATTALIONS/AIR FLEETS/BATTERIES - with a total of 494 Austro-Hungarian units and 458 Serbian-Montenigrin units! —description from the designer