Drone footage shows three strikes on Russian positions with what is most likely GPS-guided Excalibur artillery rounds with an air burst fuze setting to maximize deadly shrapnel over a wider area. Air burst, formally known as proximity burst, detonates just over top of the target resulting in deadly showers of fragmentation. This setting is often used for troops in the open, light armored or thin skinned vehicles, or for targets behind heavy cover with no overhead cover, i.e. an open trench or foxhole fighting position.