1.   Investors had bought the mark -- the traditional safe haven currency in Europe -- against the risk of delays in the monetary union plan.

2.   Investors often shift their holdings to safe haven currencies to escape political or military upheaval.

3.   The Swiss franc often is treated as a safe haven currency in times of political trouble.

4.   The dollar, often regarded a safe haven currency in times of international unrest, benefited from the uncertainty.

5.   Both the Singapore dollar and the Malaysian ringgit reeled as investors dumped them in favour of the US dollar, the traditional safe haven currency.

6.   The dollar traditionally acts as safe haven currency at times of international uncertainty.

7.   The dollar also historically benefits as a haven currency in times of potential political or military conflict.

8.   The dollar traditionally acts as a safe haven currency at times of international uncertainty.