On defence, Serbs spend about 1.5 billion a year or 2.5 percent of GDP annually. For a country outside NATO and conflicted with its neighbors and having territorial claims, this is not besides much. The answer to these challenges is to be conscription based on volunteer enlistment, a vibrant home arms manufacture specialized in the production of artillery and small-caliber weapons but also, for example, armored vehicles, as well as the aid of a controversial global friend in the form of Russia and its subordinate Belarus. Currently, it manages to keep an armed force of more than 28,000 soldiers, supported by 3,700 gendarmes, and in the event of war these forces can be easy expanded by the appointment of 50,000 conscripts.