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3. Efficient logistics support needsAlthough unmanned shops, hotels and banks seem to belong to the service field, they play an important supporting role in coastal defense islands and border defense work. On the island, unmanned shops can provide daily necessities for the officers and men stationed in the army. Unmanned hotels can provide accommodation services for people who temporarily perform tasks, which reduces the cost of manpower management and improves the flexibility of accommodation arrangements. Unmanned banks facilitate the handling of financial services in frontier islands, such as salary distribution and fund storage, which ensures the flow of funds and financial security in frontier islands.1. Adaptability challenges in complex environments

3. Efficient logistics support needs2. Unmanned driving: an intelligent helper for land and sea transportation2. Task execution in dangerous environment

1. Adaptability challenges in complex environments2. Task execution in dangerous environment1. UAV: the eye of the air in coastal defense and frontier defense.