This is the first that I'd heard of Wolmar's
The Liberation Line (Googled it -- railroading at the military "sharp end" in freshly-liberated Europe, final year of World War II) -- don't think that I, rather a "wet nelly" about such stuff, would be eager to read it, no matter who had written it, and however well. Re Mr. Wolmar, I'm rather with you,
@12LDA28C -- smug up-themselves self-styled "pundits" on any subject, tend to rub me the wrong way; have read a couple of books by Wolmar: reckoned them not terrible, but not wonderful either -- not moved to read any more.
I've posted some, about self and this author, a while ago on this thread (page 7). As told of there -- I took some pleasure in spotting a "medium-sized" error concerning railways in Poland, in one of his books which I read: wrote to him via his publisher, pointing same out. He was decent enough to respond, acknowledging the mistake and expressing an intention to rectify it in future editions; which has caused me to feel a bit better-disposed toward the man.