autocratic rule; dictatorial control
Refers to governance or control by a single person or a small group with absolute power, often in political contexts.
That country has been under autocratic rule for many years.
独裁 is a broader term for dictatorship or autocracy, while 独裁支配 specifically emphasizes the act or system of ruling autocratically.
支配 means rule or control in general, not necessarily autocratic; 独裁支配 narrows it to dictatorial control.
Compound of 独裁 (どくさい, 'autocracy, dictatorship') and 支配 (しはい, 'rule, control').