Sentence:  Freedom , in the sense of self-determination , is a worthy objective ; but if granting self-determination to the Algerian rebels entails sweeping that area into the Sino-Soviet <WSD>orbit</WSD> , then Algerian freedom must be postponed . 
Meaning of the word marked with <WSD> tags:  an area in which something acts or operates or has power or control: "the range of a supersonic jet"