Border control

[MickH74]

Dear forum,

I accepted a Status Quo to end a war. Now the other faction is sending lots of research and construction ships into my territory. How do I prevent that?

I tried to enable "Close borders" in the diplomacy menu, but the option is not available. The tooltip (sorry, it is in German) shows that "Able to control access to Baanthurian Executioners" is missing (marked with red X).
How do I control access?

Also, the last sentence says that borders to rivals are always closed. I declared this faction as my rival, but they can still pass the border.

Can someone explain what I need to do to prevent the other faction from coming into my territory?

Thanks!
Mick

 

[InvisibleBison]

You can't close your borders to a nation if you have a truce with them. There's nothing you can do to keep them out until the truce expires.

 

[Science-Recon]

Wir können unsere Grenzen vor ablauf des Waffenstillstands nicht schließen.

It's in the tooltip.
It's a bit of a weird mechanic but I assume it's so that you can get fleets and ships and such out of enemy territory after the war in case some of your systems are cut off.

 

[MickH74]

Thanks. Then it is what it is ...

 

[UltimateTobi]

It's a bit of a weird mechanic but I assume it's so that you can get fleets and ships and such out of enemy territory after the war in case some of your systems are cut off.

Which is still weird because the game already has a mechanic for cut-off entities. If the entity in question (science ship, military ship, etc) can't calculate a valid path to where you want it to go, you'll get a pop-up asking you whether they should go MIA (emergency FTL, or something similar). If you do that, they go MIA and appear in your territory some time later.
So, IMO, there is no need for forced open borders in a truce. Just have the MIA period be the same time it'd take the entities in question to reach your borders. Or teleport them instantly to one of your border systems, like the Total War games do with your armies (closest spot of your border if the territory you're in gets captured by someone you have no military access with).

 

[Science-Recon]

Which is still weird because the game already has a mechanic for cut-off entities. If the entity in question (science ship, military ship, etc) can't calculate a valid path to where you want it to go, you'll get a pop-up asking you whether they should go MIA (emergency FTL, or something similar). If you do that, they go MIA and appear in your territory some time later.
So, IMO, there is no need for forced open borders in a truce. Just have the MIA period be the same time it'd take the entities in question to reach your borders. Or teleport them instantly to one of your border systems, like the Total War games do with your armies (closest spot of your border if the territory you're in gets captured by someone you have no military access with).

True, but the emergency FTL MIA thing was added fairly recently as far as I remember, whereas the truces forcing open borders mechanic has been in since launch.

Also, this way it works both ways: if one of your systems gets cut of the truce period allows you to move a fleet in to defend it when the next war comes whereas if you had to rely on the emergency FTL then you'd only be able to get forces out, not in. And doing the total war thing of spitting fleets out to the nearest place you have open borders would suffer in this scenario cause you could get your entire fleet sent into a system isolated from the rest of your empire.

 

[LegacyCWAL]

FWIW, the opened borders also lets you get science ships to all the debris projects.