The modern Republic of Yemen was born in 1990 when traditionalist North Yemen and Marxist South Yemen merged after years of border wars and skirmishes. But the peace broke down in 1994 and a short civil war ended in defeat for separatist southerners and the survival of the unified Yemen.

Since unification Yemen has been modernising and opening up to the world, but it still maintains much of its tribal character and old ways. Tensions persist between the north and the south; some southerners say the northern part of the state is economically privileged.