This report delves into the Greek credit crisis, a sovereign debt crisis that emerged after the 2007-2008 financial crisis. It examines both internal and external factors that triggered the crisis, including unsustainable growth, high budget deficits, and substantial public debt. The report explores the role of government spending, government debt, corruption, and tax evasion in exacerbating the economic downturn. It also analyzes the impact on Greek households, the global economy, and the European Union. The analysis covers the decline in GDP, company bankruptcies, and the effects on financial institutions. The report concludes by highlighting the root causes of the crisis, the role of the Eurozone, and the impact of austerity measures. It also discusses the impact on the global economy including the reduction in domestic lending and the effects on the financial system. The report finally explains the effects of the crisis on the global economy and the global financial system.