这门课程探讨地理如何影响国家间的外交关系，属于地缘政治学范畴。

This course examines how geography affects diplomatic relations between nations, which falls under the study of ___geopolitics.

中东地区的地缘政治局势因石油资源而变得复杂。

The ___geopolitics of the Middle East are complicated due to its oil resources.

石油管道的走向往往由地缘政治决定，而非经济效益。

The route of oil pipelines is often determined by ___geopolitics rather than economic benefits.