This strikes me as a book that started with a title, as the publisher decided they wanted to write a series about the technologies of the different wars, and then they sat down to write this one and realized they didn’t have a whole lot that was specific to the topic to write.  It gives a good overview of the war in general, and it does point out that this was the first time helicopters were used as ambulances, but most of the technology used during the korean war  had also been used in WWII.  It does have a good binding and photos from the time as illustration.  It’s also guilty of including one of those inferior timelines on which the spacing of the line has absolutely no relation to the passing of time.