Sure, a ripping WWII yarn about fighting behind the lines but what sets it apart from all the other stories about secret agents and the resistance, is that the author of this autobiographical piece was British officer Freddy Spencer-Chapman - pre-war adventurer and naturalist.
During wars between men, the jungle really is neutral - but it is an Armed Neutrality with just a twinge of malevolence towards both sides. Although he contracted just about every tropical disease known to man during his time as a guerrilla in Malaya and spent half of his 4 years there not running and gunning, but on a bamboo cot, the war story of Lt Col Freddy Spencer Chapman, DSO seems to take second place to his stories of the jungle itself. Its insects, birds, plants, animals, human inhabitants are all given a thorough going over with Freddy's experienced naturalist's eye.
The casual reader expecting a shootemup action story may find this a slow and tedious read, but if you're like me - an avid history and nature lover, you'll get a lot out of it. It is a bushcrafter's delight.
Now that I've finished "The Jungle is Neutral", I'll have to track down his other books.
For more info on Freddy Spencer-Chapman, here's his wikipedia page - http://en.wikipedia.org/wiki/Freddie_Spencer_Chapman
If you're interested in reading the book, you'll find it easily enough online in the usual places.