On Saturday, Saudi Arabia closed a major oil link after an unmanned aerial strike launched from Iraq. The shutdown limits oil flow.
Iraq launched an investigation into the strikes and closed three frontier posts with Iran.
Yemen retaliated against Houthis. Saudi Arabia has few options as it faces growing dangers from Iran and its allies. The attack from Iraq led to the pipeline shutdown. Iraq's probe over the attacks continues. The closed frontier posts with Iran are part of Iraq's response.