US President Donald Trump and his Polish counterpart, Andrzej Duda, signed a Joint Declaration on Advancing Defense Cooperation between their two countries on the fringes of the UN General Assembly in New York on 23 September.
The US Air Force awarded Raytheon a contract for in-field experimentation with its high-power microwave system.
The system can be used to take down UAVs by disrupting or permanently damaging their electronics.
Dedrone, a San Francisco-based start-up company, has purchased the DroneDefender counter-small unmanned aircraft system (sUAS) technology developed by Battelle, an Ohio-based research organisation.