The Oil Crisis of 1973 was a major geopolitical and economic event that began in October 1973, when the Organization of Arab Petroleum Exporting Countries (OAPEC) proclaimed an oil embargo, leading to a sharp increase in oil prices and significant economic disruptions across the globe. This crisis marked a turning point in postwar economic developments, as it exposed the vulnerabilities of Western economies dependent on Middle Eastern oil and triggered a series of changes in energy policies, economic strategies, and international relations.