"I can open one briefly, perhaps fifteen seconds. It will be a tight fit. Ensure you are not leaving anything behind."

"Alright." He runs through checks with the others, deals with Kabuto, and is then ready to go.

Ellisaria pulls out two gems and opens a portal to the back of her lair, a little less tall than Sasuke and about as wide.

They all move through quickly enough.

The portal blinks out behind them. Ellisaria summons an elemental servitor, and it delivers a report on what has occurred in her absence in a voice and language that sounds like the grinding of rock.

"We should move out soon," Sasuke says, looking around for how to get out.

"Up the path. Second right leads to the main entrance."

"Thanks. Anything to watch out for leaving?"

"You won't be troubled by anything of mine."

"Alright." And he leads his group off to reinforce the front.

Ellisaria checks on the medical encampment the mortals have set up.

Seems to rely on a mixture of enabling their magic - Sound has provided chakra storage seals for the medics to draw from - and decently advanced technology for maintaining or treating non-urgent cases.

No problems with the infiltrators?

Some. They've kept samples of the bodies, to try and figure out at least a touch-based way of telling the difference.

She casts some arcane diagnostic spells.

...These are samples from different bodies?

Yes. They'll indicate which came from which bodies.

They are, as far as her magic is concerned, from the same person. She will instruct her elementals to watch for this signature and react with hostility.

That'd be helpful, yeah.

With that taken care of then, are her attentions needed elsewhere?

The primary front could probably use reinforcement, or if she can apply the anti-infiltration measures more widely...

She doesn't have enough elementals to spread them too widely, and creating an enchantment to imbue an object with detection more sophisticated than 'are there one or more infiltrators in the immediate area' would take a day or two.

And the war will probably be resolved for better or worse by then, at this rate.

Then she's off to the front.

They're being pressed, hard, by a combination of the masked man and an army of the infiltrators, who seem able to pop in and out of plants and the ground effortlessly. Much of the fight's been taken over by a few powerhouses (Sasuke [even without his sight], Itachi, the Kage, Naruto upon Kurama's back...), with the broader forces pulled back to provide support.

An open field of enemies and no friendly fire to worry about plays very well to her natural strengths as a dragon.