I was trying to find a list of priority US FS targets when I came across this, JP 3-09 Joint Fire Support, the "how you do it" pub on Joint fire Support for the entire US military and allies. There is much to learn here, so it's worth learning a lot of acronyms. The appendices are full of practical info on the use and limitations of various US FS systems. Grog central! This is a 2014 doc. http://www.dtic.mil/doctrine/new_pubs/jp3_09.pdf The complementary doc from 2013 is JP 3-60 Joint Targeting. This one is much easier to read, since it deals with much more concrete matters, with clear definit