геостратегічний регіон
arid region
army readiness region
flight information region (FIR)
strategic region
air defense region (ADR)
depot distribution region
ensure peace and stability in the region
hydrodynamic lubrication region
irrotational region
stagnation region
dead region
vorticity region
search and rescue region
simply coherent region
simply connected region
transition region
densely populated (densely-populated) area (region) / territory / country
confusion region
region of interest (ROI)