https://en.wikipedia.org/wiki/Container_radar

https://en.wikipedia.org/wiki/UVB-76

https://en.wikipedia.org/wiki/Jindalee_Operational_Radar_Network

https://en.wikipedia.org/wiki/Camp_Hero_State_Park https://en.wikipedia.org/wiki/Montauk_Project

https://en.wikipedia.org/wiki/Cobra_Mist

https://en.wikipedia.org/wiki/Duga_radar

https://en.wikipedia.org/wiki/Suisun_Bay_Reserve_Fleet

https://en.wikipedia.org/wiki/Ludus_Dacicus

https://en.wikipedia.org/wiki/Battle_of_Attu

https://en.wikipedia.org/wiki/Radio_Oranje