Main Directorate of Deep-Sea Research

Main Armaments Directorate of the RF Armed Forces

Main Intelligence Directorate (GRU)

Main Missile and Artillery Directorate (RF MOD)

Main Operational Directorate of the General Staff (Russia)

Defence intelligence of Ukraine (DIU) / Main Directorate of Intelligence of the MoD of Ukraine

Main Directorate of the General Staff of the Armed Forces of the Russian Federation, The

Main Operational Directorate of the General Staff of the Russian Armed Forces

deep-sea

sea drogue (see Sea Anchor)

sea-to-sea missile

main high sea fleet

main defense area (line) / main defensive position

main tank/ main fuel tank

main gear box / main rotor transmission

main rotor transmission / main gear box

main-rotor head / main-rotor hub

main-rotor hub / main-rotor head

Air defense and Airspace Management Directorate (NATO)

Armaments Directorate (NATO IS)

Armaments Planning, Programmes and Policy Directorate (NATO IS)

Chief Intelligence Directorate of the Ministry of Defense of Ukraine

Civil Military Operations Directorate of a Joint Staff (J9)

defense and Security Directorate (NATO)

Defense Policy and Capabilities Directorate (NATO)

Euro-Atlantic Integration and Partnership Directorate (NATO)

HQ Support Services Directorate (NATO)

Human and Financial Resources Directorate (NATO)

Nuclear Policy Directorate (NATO)

officer Personnel Directorate

Operations Directorate

Planning Directorate (NATO)

Science Cooperation Directorate (NATO)