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3. Efficient logistics support needs2. Security and confidentiality issuesThird, the challenges and countermeasures of unmanned technology applied to coastal defense islands and border defense

Unmanned science and technology: a new boost to coastal defense islands and border defense.2. Security and confidentiality issues

2. Task execution in dangerous environment2. Unmanned driving: an intelligent helper for land and sea transportationUnmanned science and technology: a new boost to coastal defense islands and border defense.