The Eurozone debt crisis began in 2009 when it was realized that Greece could default on its debt, escalating over three years to include potential defaults by Portugal, Italy, Ireland and Spain. The crisis occurred due to countries violating debt-to-GDP ratios without penalties and overspending during economic recession. While emergency loans from stronger economies and institutions attempted to remedy the crisis, austerity measures aimed at reducing spending further slowed economic growth and tax revenues, exacerbating the issues. The crisis significantly impacted the global economy and financial markets due to the large size of the EU and Eurozone.