Serene Waves is the 9th province (Stage 1 Province 9) of the Oceanic Future, accessible (along with Rough Expanse and Tideless Deep) after taking control of Strong Tide to the east. Taking over Serene Waves unlocks Red Sea.
If previous sectors acquired by negotiation:
Look sharp! We can't look tired, there's no resting until they're stopped.
If at least one sector taken by force:
Don't take their side! They seem to be doing well, but their pollution will be catastrophic!
You're forcing us to fight. We'll remember this.