Terrorism is a global threat that transcends borders and poses a significant challenge to national and international security. Within the spectrum of terrorism, two distinct categories often emerge: international terrorism and domestic terrorism. These categories are characterized by different motivations, targets, and methodologies. Additionally, there is a complex relationship between terrorism and organized crime, as terrorist groups often engage in criminal activities to fund their operations. In this essay, we will explore the differences between international and domestic terrorism, examine their motivations, and discuss their connections to organized crime. Furthermore, we will explore how local law enforcement agencies can prevent terrorism acts in their communities, drawing insights from the provided video. Additionally, we will highlight the areas in which law enforcement agencies need to train together and the concerns faced by law enforcement leaders when preparing for terrorism incidents.