Nuclear Provision Expert's Day is observed in Russia every September 4. Established by presidential decree in 2006, this professional holiday honors experts in the field of nuclear development for both civil and military purposes. The date was chosen to commemorate the creation of the Special Department of the Armed Forces of the USSR in 1947, which was responsible for nuclear test preparations. The significance of nuclear testing in Russia dates back to the Soviet Union's first nuclear test in August 1949, which ended the United States' nuclear monopoly. Additionally, the Chernobyl disaster in 1986 shifted global perspectives on nuclear development. Today, Russia continues to develop nuclear weapons under the State Arming Program and various federal initiatives.