What is the doctrinal symbol for Key or Decisive Terrain, and what doctrinal publication are you referencing?

MAJ Private RallyPoint Member — Fri, 13 May 2016 17:23:48 -0400

MIL-STD-2525 does not mention it, nor does ADRP 1-02.
JP 2-01.3 illustrates a K in a purple circle, but no number.
ATP 2-01.3/MCRP 2-3A illustrates a Kn or Dn (where n is the corresponding number) but is absent of color.

Shouldn't it be a purple K or D, and a corresponding number, inside a purple circle? Why or why not?

https://github.com/Esri/joint-military-symbology-xml/issues/262

Key and Decisive Terrain · Issue #262 · Esri/joint-military-symbology-xml

During the Military Decision Making Process, Key and Decisive Terrain needs to be identified. There is no prescribed symbology in MIL-STD-2525D; but doctrinally, they are identified with an encircl...

Response by Sgt Aaron Kennedy, MS made May 13 at 2016 6:00 PM

Sgt Aaron Kennedy, MS — Fri, 13 May 2016 18:00:58 -0400

FM 34-130 Intelligence Preparation of the Battlefield & FM 101-5-1 Operational Terms and Graphics are your (initial) References.

The "Purple K" is correct. Since it is LOCAL Commander based, the Numbers "may or may not" be present.

The MIL-STD-2525 works in conjunction with the above but applies to Units/Equipment/Facilities as opposed to "overlays" (not a perfect explanation, but go with it).

Response by CPT Joseph K Murdock made May 13 at 2016 7:42 PM

CPT Joseph K Murdock — Fri, 13 May 2016 19:42:21 -0400

The color should depend on whose side it is on.

Response by LTC Private RallyPoint Member made May 14 at 2016 5:19 AM

LTC Private RallyPoint Member — Sat, 14 May 2016 05:19:11 -0400

As you can see from the imagery, the key terrain for this mission is the enemy fuel resupply site. That's right, people, our objective is the circle K.