Although the Daya Civilization was a Level 5 Civilization, they did not have the time to tour the vast Milky Way Galaxy in its entirety. They spent most of their time in the Perseus Arm and were therefore unfamiliar with matters in the Orion Arm. Naturally, they did not dare roam about as freely as they did in the Perseus Arm.
Thus, rather than taking the initiative to leave as they had before, they began actively discussing the future with humanity before the second Millennium Plan was completed.
According to the Daya Civilization, humanity and they had effectively become two civilizations that got along extremely well. On that basis, they proposed taking things a step further and forming a Military Alliance with humanity.
A Military Alliance between the Perseus Trade Federation and the Star Sea Grand Alliance.
This Military Alliance would be defensive in nature. If one side came under attack from an Unknown Civilization, the other would be obligated to dispatch a support fleet and participate in their joint defense. Both sides would retain diplomatic independence and refrain from interfering in each other's internal affairs. However, in the interest of friendly cooperation, they would need to share diplomatic intelligence to a certain extent and maintain internal communication when facing Unknown Civilizations.
On that basis, the two sides would remain in contact and maintain close exchanges in the technological sphere. In particular, regarding Level Six Civilization scientific research, both sides should be sufficiently transparent with one another, allowing each to know the other's progress in research related to Level Six Civilization and ensuring that both civilizations completed their advancement to Level Six Civilization on the primary Technology Tree simultaneously.
This clause on technological transparency was extremely important. The Daya Civilization had listed many provisions concerning research into technologies related to