The Euro Zone Crisis, which began in late 2009 following the global financial crisis, significantly affected countries like Greece, Portugal, Italy, Ireland, and Spain (collectively known as PIIGS) due to excessive government debt and budget deficits. Greece's national debt reached €300 billion, with a debt-to-GDP ratio of 113%, prompting calls for external aid and causing contagion effects on neighboring nations and global markets. To stabilize the situation, European governments and the IMF have proposed substantial financial measures, emphasizing the need for economic policy integration among Euro Zone countries to avoid broader financial collapse.