ΔE 9.6, close: similar, with a visible difference side by side. Militia Green is a little lighter, more muted, cooler than IDF Green.
Usually, if you are not matching paint already on the model. Close match (ΔE 10). Militia Green is a little lighter, more muted, cooler than IDF Green.
The same difference applies the other way round: IDF Green is a little darker, more saturated, 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 IDF Green on the colour wheel See Militia Green on the colour wheel
All matches: IDF Green equivalents · Militia Green equivalents