1. A designated maritime region under the operational control of a naval force, used for military exercises, surveillance, and combat operations
The naval operational area extended 200 nautical miles from the coast.
A área operacional naval se estendia por 200 milhas náuticas a partir da costa.
2. A specific zone of water where naval vessels conduct coordinated operations and maintain tactical responsibilities
All ships within the naval operational area reported to the fleet commander.
Todos os navios dentro da área operacional naval reportavam ao comandante da frota.