transportation

This is a very informative book, with great pictures and good descriptions. The only reason that I've given it three stars is that it includes a page on Helicopters at War. It has a very short summary of the use of helicopters in Vietnam, Korea, and the Gulf War. Certainly done very well and with pictures showing soldiers jumping out the helicopters -- some with medical situations and one with guns (albiet from distance).

I just didn't want to have to answer the next questions that would come from my 4 year old. Perhaps for an older age when these topics have already been discussed.