American settlers outnumbered Mexican citizens. They began to take over the regional administration and to insist on special US-based privileges such as owning slaves, appointing their own lawmen, and using US legal principles for land-ownership. None of these things were acceptable to the Mexican
Tens of thousands of people were killed by Bashar al-Assad as they demonstrated for him to resign as president of their country. The protests that began calling for his resignation later sparked a civil war which has killed hundreds of thousands of people.