ΔE 14.2, fair: the same colour family, but not a straight swap. Japan. Unif. WWII is noticeably lighter, warmer than Camouflage Green.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Japan. Unif. WWII is noticeably lighter, warmer than Camouflage Green.
The same difference applies the other way round: Camouflage Green is noticeably darker, cooler.
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 Camouflage Green on the colour wheel See Japan. Unif. WWII on the colour wheel
All matches: Camouflage Green equivalents · Japan. Unif. WWII equivalents