North and South Yemen had both received deliveries of Soviet SS-21 Scarab ballistic missiles. Following its border clashes with North Yemen in 1979, South Yemen received FROG-7 missiles with about 12 launchers and Scud-Bs with about 6 launchers, from the Soviet Union. (1) These missiles likely remain in Yemen's combined arsenal.
1. Aaron Karp, "Ballistic Missile Proliferation in the Third World," op. cit., p. 308.