can i revert a vassal to my control?

[DIOSTICKS]

this is my first time playing the game and i pressed by accident on the vassal button and i lost one of my planets i am playing on iron man mode so i cant revert it back with saves
how can i get it back? is it even possible i lost control over the planet and i lost quite a bit of my fleet capacity

[EleventhStar]

once they have been your subject for 10 years you can integrate them back, which takes time and influence.

vassals are acutally quite nice for fleet capacity if you have dominion traditions though.

[DIOSTICKS]

Originally posted by EleventhStar:

once they have been your subject for 10 years you can integrate them back, which takes time and influence.

vassals are acutally quite nice for fleet capacity if you have dominion traditions though.

can i do it with war or something the thing is i lost quite a bit of resources and i cant maintain a bigger fleet for an attack on miner drones or whatever they are and i do have domination traditions i wanted to do a full dictator game for my first single player game and this vassal kind of ruins it not to mention that near the migration treaty there is a big red x that i dont know what it means so i guess i cant really use it (i lost around 15 energy income per month)