What does S/O stand for?
S/O stands for "smoke and obscurant"
How to abbreviate "smoke and obscurant"?
"smoke and obscurant" can be abbreviated as S/O
What is the meaning of S/O abbreviation?
The meaning of S/O abbreviation is "smoke and obscurant"
What does S/O mean?
S/O as abbreviation means "smoke and obscurant"
