What literally means Latin: "divide et impera"?

Divide and rule (from Latin dīvide et imperā), or divide and conquer, in politics and sociology is gaining and maintaining power by breaking up larger concentrations of power into pieces that individually have less power than the one implementing the strategy. The concept refers to a strategy that breaks up existing power structures, and especially prevents smaller power groups from linking up, causing rivalries and fomenting discord among the people. It was heavily used by British Empire in India and elsewhere.