2011 Icelandic loan guarantees referendum
A referendum on the repayment of loan guarantees by Iceland to the governments of the United Kingdom and the Netherlands over the failure of the Icesave bank was held in Iceland on 9 April 2011. This was the second referendum on the issue after a previous one was held in March 2010.
Source: Wikipedia — 2011 Icelandic loan guarantees referendum (CC BY-SA 4.0)