The three weaknesses of non European regions that allowed European powers to control or colonize them are ;
They were crippled by sales limitations and barriers.
There was a shortage of solidarity among fragments of several groups.
They did not have the most superior martial tools.
The distinction in military facilities executed the conquered nation incapable to protect themselves in the appearance of Europeans menace.
When this occurs, some people determined to abdicate to the European while some of them choose to struggle, which split the solidarity among them. Not only that, if the majority of people reject to accompany the colony, they would be provided with limitations and barriers which damage their market.