In unconventional warfare operations, it may be impossible or unwise to use conventional military munitions as tools in the conduct of certain missions.

Therefore it may be necessary to fabricate the required munitions from locally available or unassuming materials.

The purpose of this manual being to  increase the success of special forces and guerrilla troops by describing in detail the manufacture of munitions from seemingly innocuous locally available materials.

This is one interesting read and not to be missed.