The U.S. military wants to arm small drones and manned vehicles with non-lethal weapons.
These devices would include exotic non-lethal gear, including directed energy weapons such as low-powered lasers and microwave beams, as well as more familiar weapons such as stun grenades and stink bombs. These weapons would equip aerial drones and manned and robotic ground vehicles, as well naval surface and underwater craft.
(Source: https://www.forbes.com/sites/michaelpeck/2021/03/08/the-pentagon-wants-to-arm-drones-with-non-lethal-lasers-and-microwave-cannon/?sh=3e8a1b951727 )