Sea Forts

Related time notes

1. Fortress Heligoland: Britain doesn't give Heligoland to Germany in the 1890 Agreement... Patreon 10624 Oct 2024
   2:09:11Would a second ring of sea forts surround Heligoland?Q&A
2. Bruships 72: A Litte Bit of Everything Makes the World6 Mar 2022
   3:00:59Dover Castle and the history of coastal fortificationsQ&A