• We have updated our Community Code of Conduct. Please read through the new rules for the forum that are an integral part of Paradox Interactive’s User Agreement.

mgun2010

Glorious Disaster Master
49 Badges
Dec 8, 2010
83
5
  • Heir to the Throne
  • Stellaris - Path to Destruction bundle
  • Sword of the Stars
  • Semper Fi
  • Europa Universalis IV: Res Publica
  • Hearts of Iron III: Their Finest Hour
  • Hearts of Iron III
  • Stellaris: Distant Stars
  • Shadowrun: Dragonfall
  • Shadowrun Returns
  • Stellaris: Synthetic Dawn
  • BATTLETECH - Digital Deluxe Edition
  • Stellaris: Apocalypse
  • Stellaris: Humanoids Species Pack
  • Hearts of Iron IV: Expansion Pass
  • Age of Wonders III
  • Hearts of Iron IV: No Step Back
  • Shadowrun: Hong Kong
  • BATTLETECH: Flashpoint
  • Stellaris: Ancient Relics
  • BATTLETECH: Season pass
  • Stellaris: Lithoids
  • BATTLETECH: Heavy Metal
  • Hearts of Iron IV: La Resistance
  • Stellaris: Federations
  • Battle for Bosporus
  • Hearts of Iron IV: By Blood Alone
  • BATTLETECH
  • For the Motherland
  • Hearts of Iron IV: Death or Dishonor
  • 500k Club
  • Stellaris
  • Hearts of Iron IV Sign-up
  • Stellaris Sign-up
  • Hearts of Iron IV: Cadet
  • Europa Universalis IV: Rights of Man
  • Stellaris: Digital Anniversary Edition
  • Stellaris: Leviathans Story Pack
  • Hearts of Iron IV: Together for Victory
  • Europa Universalis III
  • Europa Universalis III: Chronicles
  • Divine Wind
  • Europa Universalis IV
  • Europa Universalis IV: Conquest of Paradise
  • Europa Universalis IV: Wealth of Nations
  • Europa Universalis IV: Call to arms event
  • Crusader Kings II
  • Stellaris: Megacorp
  • Hearts of Iron IV: Expansion Pass
I think it is the sea fort that provides the defensive bonus, considering you are getting the amphibious penalty.