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military installation or reservation where weapons, military technology, or tactics are experimented with or are tested
|Subclass of||military base|
This category has the following 57 subcategories, out of 57 total.
- ► Gaižiūnai Polygon (114 F)
- ► Opuk proving ground (9 F)
- ► Uzhhorod proving ground (1 F)
- ► Truppenübungsplatz Vogelsang (4 C, 1 P, 104 F)
Media in category "Proving grounds"
The following 4 files are in this category, out of 4 total.