[DannyTN]

Why do they have to be manned? Manned craft require reentry periodically, which means more launches. Possibilities include:

• "The Laser"
• Anti-satelite space drones
• Anti-anti-satelite space drones
• various decoys
• Space to ground weapons
• Redundant GPS/Satelite systems
• space junk cleaning operations
• Satelite repair operations.

[GingisK]

What would be the point of an entirely unmanned military presence in space? Keep the satellites in line?

[Yaelle]

space junk cleaning operations

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Just cleaning the space Americans won’t.