At which event were high-ranking Nazi officials held accountable for their involvement in the Holocaust? Yalta Conference
Nuremberg Trials
Holocaust Tribunal
Potsdam Conference

could you use this to with a topic?

the key difference between a democracy and a republic lies in the limits placed on government by the law, which has implications for minority rights. both forms of government tend to use a representational system — i.e., citizens vote to elect politicians to represent their interests and form the government.

the answer to your question is:

strong-mayor system