Under a tyranny, the power to make political decisions is in the hands of one person tyrant.
Explanation:
A tyrant is a person especially a ruler who rules with ultimate power. The ruler rules in a cruel way without any laws. The tyrant rules the country in an arrogant way. He reaches this position as powerful ruler by force and sometimes they inherit their power.
The people were treated oppressively and cruelly. The political decisions were made by the tyrant without following any rules or laws. Tyranny is a government with harsh rules and punishing someone severely for small crime.