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:
USSR Flag commander stars.svg Own PDRUexempt flags Blue red white flags Flags with cantons Flags with four fivepointed stars Flags with hammer and sickle Flags with one red fivepointed star Flags with three white fivepointed stars Military flags with stars Naval rank flags of the Soviet Union SVG flags naval of the Soviet