This category has the following 9 subcategories, out of 9 total.
- Cold War fortifications (8 C, 6 P)
- 20th-century forts in England (12 P)
- Maginot Line (30 C, 140 P)
Pages in category "20th-century fortifications"
The following 19 pages are in this category, out of 19 total. This list may not reflect recent changes.