I bought this lighter today and it's supposed to be in the style of what soldiers fighting in Vietnam carried. I don't understand the quote on the back, though.
Since the lighter has the dates (19)65-66, it was probably used (and engraved) by a soldier stationed in support of the Montagnards who lived in and around the area.
In that area of Vietnam there were no straight, flat roads, and in fact no roads at all. So every where a soldier had to go they did it up and down (the mountains.)