Successor-state government efforts to reduce the prevalence of illegally held arms are co-ordinated through a Regional Approach to Stockpile Reduction (RASR) focused on reducing stockpiles, arms diversion and unexplained explosions in South-east Europe. Partners include the European Union, the US Office of Weapons Removal and Abatement, the US Defense Threat Reduction Agency (DTRA) and NATO's Support and Procurement Agency. Funded by the US Government, activities include annual workshops attended by US government officials from the Departments of State and Defense and defense ministry representatives from the Yugoslav successor states .