What is the difference (if any) between the green and white Kub rounds?
During the Cold War, two types of 2K12M KUB-M (SA-6A) missile types were exported.
3M9M1/3M9ME*Fielded from 1973, the basic missile type of the first modernized (export) system version (KUB-M1).
3M9M3/3M9M3E*Fielded from 1976, the basic missile type of the third modernized system version (KUB-M3).
The new heavier missile has extended range; acquire target after launch possibility, and the capability of engaging hovering or receding targets.
All the Serbian missiles were the second type.
(Main differentiators: Nose color [grey/white], back fin shape [standard/with extended antenna at the base])
* Export version