Category:Fortifications in the United Kingdom

• Fortifications in British Overseas Territories and Crown Dependencies‎ (7 C)

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• Fortifications in England‎ (9 C, 11 P)
• Fortifications in Northern Ireland‎ (3 C)
• Fortifications in Scotland‎ (8 C, 9 P)
• Fortifications in Wales‎ (4 C, 2 P)

B

• British World War I defensive lines‎ (2 P)
• British World War II defensive lines‎ (11 P)
• Bunkers in the United Kingdom‎ (1 C, 6 P)

C

• Castle and garrison governors in the British Isles‎ (4 C)
• Castles in the United Kingdom‎ (16 C, 2 P, 4 F)
• City walls in the United Kingdom‎ (1 C, 33 P)

F

• Fortifications in Roman Britain‎ (9 C, 2 P)
• Forts in the United Kingdom‎ (8 C)

G

• Gates in the United Kingdom‎ (4 C)

M

• Martello towers‎ (32 P)

T

• Tower houses in the United Kingdom‎ (2 C, 7 P)