An international coup is an event that can change the political order of a country and even affect global stability. One of the best known examples is the coup that occurred in Chile in 1973. On September 11, the democratically elected government of President Salvador Allende was overthrown by the military led by General Augusto Pinochet. This coup marked the beginning of a brutal military regime in Chile and had a far-reaching impact on politics and human rights throughout the world. Chile’s coup history began with widespread dissatisfaction with Allende’s economic policies, which were considered too socialistic. The policy of nationalizing vital sectors such as copper mining sparked conflict with business circles and the US government. The CIA, which supported the overthrow of the Allende regime, played an active role in efforts to undermine the stability of the existing government. Propaganda and planting conspiracy theories became powerful campaign tools in preparation for the coup. When the coup occurred, many Chileans were shocked by the violence and mass arrests by the military. Murder, torture, and disappearances of people considered opposition became common practice during Pinochet’s regime. More than 3,000 people are estimated to have died, while tens of thousands were arrested and tortured. These events left a terrible mark in the collective memory of the Chilean people and strengthened the human rights movement around the world. The impact of this coup spread not only in Chile but also throughout Latin America. The slow and complex international response to human rights abuses under Pinochet sparked discussions about western countries’ responsibility for the curtailment of human rights. This paved the way for various non-governmental organizations and social movements to fight for justice and transparency around the world. At the global level, the Chilean coup inspired many pro-democracy and anti-authoritarian movements. Various countries, including Argentina, Uruguay, and Brazil, experienced similar coups, often with support from the US government. This shows how close the relationship is between geopolitical interests and military intervention. The communication revolution and information dissemination in today’s digital era implies that international coups, such as the one in Chile, remain important lessons. Understanding this history helps us understand the dynamics of power and the role of civil society in promoting political reform. Thus, the lessons learned from international coups relate not only to a particular country, but also illustrate the universal struggle for freedom and justice throughout the world.