The attempt by one country to impose political control over another territory is

This statement your describing sounds like imperialism.

Imperialism is when one country tries to extend their political power through either military force or by making deals. This concept is seen throughout world history. Here are some examples of imperialism.

1) The Scramble for Africa - This is when different European countries competed over territories in Africa. The goal was to gain these territories in order to implement a political and economic system that would benefit the Europeans.

2) American Imperialism - America spread their political power through force and deals into territories such as Hawaii, Puerto Rico, and the Philippines.