skos:altLabel | - Knock John
- Maunsell Fort
- Maunsell Forts#Maunsell army forts
- Maunsell Forts#Maunsell naval forts
- Maunsell Sea Fort
- Maunsell Sea Forts
- Maunsell army fort
- Maunsell naval fort
- Maunsell_Forts#Red_Sands_Fort_.28U6.29
- Nore Army Fort
- Red Sands Fort
- Sunk Head
- Sunk Head Tower
- armed forts
- naval forts
- old World War II fort
- sea forts
- sea-fort
- seafort
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