This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
US nuclear strike map.svg Primary target locations for Soviet nuclear strikes during The resulting fallout is indicated with the darkest considered as lethal to relatively fallout free yellow zones USnuclearstrike BlankUSMap svg UTC based on an image published in USnuclearstrike Federal Emergency Management Agency FEMA BlankUSMap