In the recent years Chad, Guinea, Mali and Sudan caught the international attention for which one of the following reasons common to all of them?

* Successful Coups There have been several military coups in these countries in recent years - Chad (2021) - Guinea (2021) - Mali (2020, 2021) - Sudan (2019)  * Military coups often lead to political instability, international concern about human rights, and potential disruption to trade and regional security.