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3. Efficient logistics support needs1. UAV: the eye of the air in coastal defense and frontier defense.1. Monitoring requirements in a wide area

2. Task execution in dangerous environment2. Security and confidentiality issues2. Task execution in dangerous environment

Unmanned technology: coastal defense, islands and frontier defense's new help to defend the motherland.Unmanned technology: coastal defense, islands and frontier defense's new help to defend the motherland.1. UAV: the eye of the air in coastal defense and frontier defense.