What does SUM stand for?

SUM stands for "Surface-to-Underwater Missile"

How to abbreviate "Surface-to-Underwater Missile"?

"Surface-to-Underwater Missile" can be abbreviated as SUM

What is the meaning of SUM abbreviation?

The meaning of SUM abbreviation is "Surface-to-Underwater Missile"

What does SUM mean?

SUM as abbreviation means "Surface-to-Underwater Missile"