TY JOUR TI ENSURING NATIONAL SECURITY WITHIN THE FRAMEWORK OF THE USE OF THE NORTHERN SEA ROUTE KW International treaty KW Northern sea route KW Arctic KW straits KW sovereign rights KW State sovereignty KW freedom of navigation JO LAW. SAFETY. EMERGENCY SITUATIONS AU Mayurov, N.P. AU Makarov, D.A. PY 2024 IS 2023 PB Saint-Petersburg University of State Fire Service of Emercom of Russia