Does a casualty estimate come with this? It sounds like 2M casualties, 500K+ dead to me. And that before considering a nuke exchange.
JHFC. This is nasty stuff.
That is not unreasonable. Many of the casualties would be from civilians, as the infrastructure of both contries would collapse, causing massive humanitarian problems.
Informally, the U.S. military units there refer to themselves as 'speedbumps'. Sitting within range of the biggest line of artillery in history, many expect to be totally wiped out, cut off, or captured within the first 24-36 hours. This isn't to say that we or the ROKs are pussycats, but that the initial shock of 10,000 tubes firing several times a minute for hours on end will shock the South badly, clogging the roads with literally millions of refugees. That puts a hurting on logistics, which is our soft underbelly.