Iran exposed major defense gap at US bases, now Trump's Air Force is hunting for a new 'gun shield'?

Iran’s retaliation has exposed potential gaps in the U.S. defence of overseas air bases, prompting the Air Force to seek new medium-calibre gun systems against drones and subsonic cruise missiles. With expensive interceptors facing lower-cost aerial threats, Washington is looking to build a cheaper, rapidly deployable inner layer of base defence amid concerns over future conflicts with Iran, China and Russia.