"Two flyers in one day? They're getting way too common."
"It's worse," the commander informs them, "South Karlsland got hit with three at once. We're taking Lytee's express and sleeping there. You can sit out if you absolutely need to, but Freya's still recovering so we could use you as a comms relay."
"No, I'll come. I just reserve the right to complain about it."
The 42nd United Forces Witch Wing takes off, bracing to fight yet another city-destroying monster, and assembles into a perfect synchronized formation as Lytee charges her teleport power.
...This is not South Karlsland wilderness.
Near the Golden Coven capital, in Aurum
Near Savarasse, in Thilanushinyel
Near Whately Academy
With Unbitwise
Imalla Normanson was born on Feb. 22, 1319. She is not a witch and has no relation to any supernatural person except Lytee. She is not interested in carrying a half-vampire baby. She wants her limp fixed, and immortality appeals to her. She is not owed reparations from vampirekind. She hopes to live alone but would be willing to work for the Golden Coven if they do not trust her to do that. Lytee told her everything, but she reads the Finnish version of the pamphlets anyway.
In that case she may be scheduled for the next batch if she plans on permanently immigrating to this world, or placed in a high priority slot for the eventuality that it is decided that vampires get exported to her own.
There is a wealth of unique media in a world where history is different. The manuscripts of famous novels arrive, and theater companies from the far side start producing recorded and somewhat sloppily edited versions of their live performances with literally magical special effects after a few days.
The UDF makes efficient use of its shiny toys. Neuroi caused deaths drop sharply as radios and rifles disperse throughout the organization. Radios, cars, freezers, cameras, medicine, plastics... Several companies are already investigating how to produce these things locally after a week.
Progress on a permanent treaty is rather slow as politicians quibble over minor points, but moves along steadily. The list of known specials arrives.
It turns out that being a half vampire makes Strike Witches more powerful - slightly stronger than their best as a human. They no longer lose power as they age, either. And other teleporters turn out to be able to cross worlds as well. There is no more danger of losing access to the other world.
A few months later, the Neuroi have been pushed back to the giant hurricane floating over Ostmark. Large sections of the recovered land are uninhabitable, but it's celebrated none the less.
The hurricane itself is a different matter. It proves almost impenetrable to Witches.
The UDF would like to take her up on the offer of a nuke, now.
...The hurricane does not disappear.
At least it stopped producing new Neuroi for about a week. The UDF refrains from asking for a bigger nuke. Instead it sets up a huge network of defense perimiters and hunkers down into research and development of ways-to-kill-this-thing.