field of international relations, a sphere of influence (SOI) is a spatial region or concept division over which a state or organization has a level of cultural...

Look up sphere of influence in Wiktionary, the free dictionary. Sphere of influence may refer to: Sphere of influence (astrodynamics), the area, typically...

A sphere of influence (SOI) in astrodynamics and astronomy is the oblate-spheroid-shaped region where a particular celestial body exerts the main gravitational...

common way of life in all states within the Soviet sphere of influence. In modern history, Sovietization refers to the copying of models of Soviet life...

Sphere of influence (astrodynamics), the region around a celestial body in which it is the primary gravitational influence on orbiting objects Sphere...

The Hill sphere is a common model for the calculation of a gravitational sphere of influence. It is the most commonly used model to calculate the spatial...

Co-Prosperity Sphere (Japanese: 大東亞共榮圈, Hepburn: Dai Tōa Kyōeiken), also known as the GEACPS, was a pan-Asian union that the Empire of Japan tried to...

Ambition: Sphere of Influence official website Archived 2015-09-01 at the Wayback Machine (in English) Nobunaga's Ambition: Sphere of Influence – Ascension...

relations, Françafrique (French pronunciation: [fʁɑ̃safʁik]) is France's sphere of influence (or pré carré in French, meaning 'backyard') over former French and...

their sphere of influence rapidly in a highly detectable way; hypothetical "quiet" aliens are hard or impossible to detect. A special case of loud alien...