Sovereign Bond

What Does Sovereign Bond Mean?
A debt security issued by a national government within a given country and denominated in a foreign currency. The foreign currency used will most likely be a hard currency, and may represent significantly more risk to the bondholder.

Investopedia explains Sovereign Bond
The government of a country with an unstable economy will tend to denominate its bonds in the currency of a country with a stable economy. Because of default risk, sovereign bonds tend to be offered at a discount. Brady bonds, which are issued by governments in developing countries, are a popular example of sovereign debt securities.