Why US plan to sell F-35 warplanes to Saudi Arabia is controversial
Saudi Arabia has lobbied the US for years to buy F35s, the world's most advanced fighter jet.
President Donald Trump's administration says it has approved the sale of nearly 50 F-35 fighter jets to Saudi Arabia in a policy shift for the US that has raised concerns from some members of Congress.
Saudi Arabia has sought for years to buy the world's most advanced warplane, equipped with stealth technology that allows it to evade enemy detection.
Washington had resisted, partly because it supplies F-35s to its ally Israel, which is guaranteed under US law to receive top-of-the-range American weapons compared with those its regional neighbours can access.
Trump has a close relationship with Saudi Crown Prince Mohammed bin Salman, who visited the White House last November.