Well,we need to define what being in control is,then.The Soviets played both sides w.r.t Iran & Iraq.The Israelis will always have trouble from these nations.When the Soviets were there,they could think of military options.Now it’s a proxy-war,not too different.
Wasn’t the Soviet Union still in existence(though crumbling) when the Kuwait war took place??
Sure. That’s the nature of stability in the real world.