GRAU (Main Caliber Directorate)

GRAU, or the Main Caliber Directorate, is a Soviet and Russian military organization responsible for the design, testing, and procurement of guided weapons and missile systems. It oversees the development of artillery, missile technology, and related equipment, ensuring these systems meet military needs. Essentially, GRAU acts as the central authority for managing the technical aspects and approval process for a wide range of advanced weapon systems, coordinating their production and deployment in the armed forces.