Posted on May 13, 2016
MAJ Account Manager
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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
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LTC Psychological Operations Officer
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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.
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Sgt Aaron Kennedy, MS
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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).
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MAJ Account Manager
MAJ (Join to see)
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Good call on FM 34-130, however that is no longer an active publication (Neither is FM 101-5-1). It also doesn't explicitly say use purple, just to use something that "pops". There is currently a change proposal being drafted to include Key and Decisive Terrain (circled Ks and Ds) in MIL-STD-2525.
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Sgt Aaron Kennedy, MS
Sgt Aaron Kennedy, MS
8 y
MAJ (Join to see) - Check. Those were the root (originating) pubs for the process. When we went "electronic" (MIL-STD-2525) A LOT got misplaced (not exactly right word, but gets the point across).

Much of it boiled down to "Common Practice" supplementing the Standards, Instructions, and Manuals. The "Purple K" is a great example (color that Pops)
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CPT Joseph K Murdock
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The color should depend on whose side it is on.
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MAJ Account Manager
MAJ (Join to see)
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Does Key Terrain have an affiliation?
Key Terrain: Any locality, or area, the seizure or retention of which affords a marked
advantage to either combatant.
Decisive Terrain (not in JP 1-02) is identified specifically by the commander and therefore should be the same color as any other graphic control measure which uses affiliation.
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CPT Joseph K Murdock
CPT Joseph K Murdock
8 y
Enemy Red, Friendly Green
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MAJ Account Manager
MAJ (Join to see)
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CPT Joseph K Murdock - Obstacles are green. Friendly control measures are either blue/black.
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CPT Joseph K Murdock
CPT Joseph K Murdock
8 y
Thanks.
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