Sousei is pleased that Takakage understood his underlying meaning, at least. The Yamainu were formed not for praise and acknowledgement, but...there is nothing wrong with receiving praise and acknowledgement. They deserve it, for the hard work they do, and it means more from someone else from the country than from their own captain, at the very least.

But aside from that, he simply nods.

The country has been entrusted to them, and they won't allow it to fall into ruin, whether by the Orochi or these apparent extraterrestrial threats. Unfortunately, it also means he doesn't have much to say in response to that, being as naturally taciturn as he is. Hope you weren't expecting an enthralling conversation, Takakage...