Financial markets were plunged into fresh turmoil after Greece's political parties failed once again to agree to form a unity government, and European policymakers warned that Greece's aid payments would be cut off unless Athens quickly produced an administration prepared to deliver far-reaching economic reforms and budget cuts.

Without those funds from the European Union and the International Monetary Fund, Greece could run out of cash to meet its national debt interest payments as early as next month. The country would then have no option but to default. Most analysts expect that a default would be a prelude to Greek exit from the single currency altogether.

http://www.independent.co.uk/news/world/europe/world-braces-itself-for-greek-euro-exit-7746774.html