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3. Efficient logistics support needs1. UAV: the eye of the air in coastal defense and frontier defense.3. Unmanned shops, hotels and banks: the service guarantee of frontier islands.

Unmanned technology: coastal defense, islands and frontier defense's new help to defend the motherland.3. Efficient logistics support needs2. Security and confidentiality issues

3. Efficient logistics support needs1. Monitoring requirements in a wide areaThird, the challenges and countermeasures of unmanned technology applied to coastal defense islands and border defense