"....... Immediately, the paratemporal-transposition field went on with a humming sound that mounted to a high scream, then settled to a steady drone. The mesh dome flickered with a cold iridescence and vanished, and they were looking into the interior of a great fissionables refinery plant, operated by Paratimers on another First Level time-line. The structural details altered, from time-line to time-line, as they watched. Buildings appeared and vanished. Once, for a few seconds, they were inside a cool, insulated bubble in the midst of molten lead. Tammand Drav jerked a thumb at it, before it vanished. "That always bothers me," he said. "Bad place for the field to go weak. I'm fussy as an old hen about inspection of the conveyer, on account of that." "Don't blame you," Verkan Vall agreed. "Probably the cooling system of a breeder-pile." They passed more swiftly, now, across the Second Level and the Third. Once they were in the midst of a huge land battle, with great tanklike vehicles spouting flame at one another. Another moment was spent in an air bombardment. On any time-line, this section of East Europe was a natural battleground...."
H. Beam Piper 'Temple Trouble'. (1955) Part of the Paratime series of stories.
Whatever is going on over there right now the full package part-and-parcel of war is following it. Widespread loss of utilities and power. No transportation. No essential medications. Spotty hospital service due to facilities getting missile striked. Bold and constant reminder to our own ungrateful panty-sniffing leftist clowns who hate this country what it could have been like for them if they were living in the 250+ various war torn hotspots across the world right at this moment.