Category:Fortifications by period

• Fortifications by century (22 C)

C

• Cold War fortifications (8 C, 6 P)
• Crusader castles (7 C, 59 P)

D

• Dacian fortresses (1 C, 3 P)

F

• Forts in England by period (8 C)

M

• Medieval defences (13 C, 26 P)

R

• Roman fortifications (5 C, 14 P)

S

• Sassanian fortifications (2 C, 8 P)

W

• World War I defensive lines (2 C, 4 P)
• World War II defensive lines (8 C, 62 P)