Latest blog post: An unforseen hiatus. (2023-01-02)
You are correct, central europeanish Darth said.
Whatever the case, the government of the day appears to have initiated communication without consulting the other nations. This goes back to the dictation on how to contact them back. If they have provided exact locations for laser comms and a strong encryption key then they keep interactions to themselves.
However... If the other nations have figured it out they might attempt their own communications, either as a group... or independently. The thought of Zane suddenly being flooded by 50+ messages from different world leaders is entertaining.
... it hadn't occured to me that Iskra may be a representative of the UN or a similar international body, rather than of Protagonistan's assorted intelligence agencies, but yes, it seems possible at least ... I note the lack of a language barrier between them and the major, though, burst of slam-the-door-ese notwithstanding ...
... still, I have a hard time to believe that the national authorities would present the case to the UN and then decide to go behind their collective backs and start bilateral cahoots with someone so obviously uninterested in nation-vs.-nation shenanigans as Zane / the Raharrs. It screams "double-cross me right back!" IMHO.
Iskra being part of a newly formed international agency is noted in the Cast page, so not necessarily in story canon yet.
Iskra noted that she's a guest on the base and the base remains under the Major's control but all contact with Nea is supposed to be under the international agency's jurisdiction. I'm willing to bet that the jurisdiction on communication is supposed to extend to general contact with the aliens. However, at the very least, taking Nea away to record her message to the fleet should be within the agency's jurisdiction to know about.
Iskra was there for the meeting when the Major arranged Nea's outing to find Gharr in exchange for a way to contact the fleet so I imagine she can easily work out that "Protagistan" is making contact on its own.