What is the fine-grained topic of the following text: Karachayevo-Cherkesia's leader Rashid Temrezov, Prime Minister Aslan Ozov, and parliament speaker Aleksandr Ivanov, issued a joint statement on November 2, calling on all ethnic groups in the region "to do everything in our power not to allow the horrors of repressions anymore." Only return the topic.
Karachayevo-Cherkesia leaders' joint statement against ethnic repressions