What is a puppet government?
a government controlled by outside authorities
a government formed by insurgents
a government controlled by the military
a government elected after an overthrow

A puppet government is a government controlled by outside authorities.

Explanation:

Puppet government is a term used to refer to a government that owes its existence (or another important issue) to the establishment, support or control by a more powerful entity, typically a foreign power.

The term is used almost exclusively by the detractors of such governments, regardless of whether the majority of affected citizens recognize the classification or oppose that type of government. Often, a government is called a puppet by a rival government that uses the term to question the legitimacy of that government. In addition, it usually implies the lack of legitimacy of that government, from the point of view of the one who uses the term.

For example, the governments of North Korea and South Korea have often said throughout their history that they are actually the sole rulers of the peninsula and that the other government is merely a puppet of the Soviet Union or the United States, respectively.

the great wall of china worked as a defense for the feudal states of the zhou dynasty to the north. during the warring states period more walls were put up to defend the borders of the different kingdoms. it was semi successful because despite the wall, the mongols eventually conquered china also the great wall provided protection to the economic development and cultural progress, safeguarded the trading routes such as the silk road, and secured transmission of information and transportation. @jayxboof