Attempted secession of the South
No real unification ever took place. Each government relocated some of its institutions and army units to the territory of the other. This crippled the economy, which had already been hit severely by the return of up to a million Yemeni expatriates, sent back from Saudi Arabia as a punishment for Yemen’s stand in the Gulf War of 1990-1991 (Iraq’s short-lived occupation of Kuwait and the American-led campaign to drive Iraqi forces out). Income dwindled, resources ran out, and crisis loomed. Fighting finally broke out in January 1994, when the former leader of the PDRY, Ali Salim al-Beidh, announced the secession of the south from the new union. The war that followed did not last long: southern army units were isolated from their power base or succumbed to northern rule without a fight. After seventy days of fighting Yemen was united again, only this time under an increasingly dominant northern hegemony.