However, ACS officials claim that the system can operate totally autonomously should the US military require it to in the future, with sentry guns taking the entire kill chain out of the hands of ...

The German anti-aircraft guns had a hold on the Eighth Air ... The quotes usually said: flak was everywhere, but it missed us. Flak was so thick you could walk on it; the sky was black with ...

While rapid-firing flak guns reaped a heavy toll on low-flying ground attack aircraft in World War II, most combatants found individual 20-millimeter guns like the M75 lacked satisfactory hitting ...