Naval Tripwire Idea ID
The add_ideas ID for Naval Tripwire in Hearts of Iron IV is naval_tripwire_navy_spirit.
Naval Tripwire

naval_command_spirit
Add this idea with the add_ideas command and the idea ID naval_tripwire_navy_spirit.
Effects
While active, Naval Tripwire applies the following modifiers in Hearts of Iron IV:
- Enemy fleet size penalty+20%
About this idea
We may not fully stop the enemy from approaching our coasts, but we can make it bloody and expensive for him.