ΔE 15.9, loose: different enough that you should pick on purpose. Jenkins Green is a little lighter, much more saturated, cooler than Military Shade. They are different kinds of paint: Army Painter Military Shade is a wash/shade and Golden Jenkins Green is an opaque base/layer paint, so they won’t behave the same on the model even where the colour is close.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 16). Jenkins Green is a little lighter, much more saturated, cooler than Military Shade. They are different kinds of paint.
The same difference applies the other way round: Military Shade is a little darker, much more muted, warmer.
ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.
See Military Shade on the colour wheel See Jenkins Green on the colour wheel
All matches: Military Shade equivalents · Jenkins Green equivalents