Reserve currency economy, the German Deutsche Mark gained the status of the second most important reserve currency after the US dollar. When the euro was introduced on 1 January 1999, replacing the Mark, French franc and ten other European currencies, it inherited the status of a major reserve currency from the Mark. Since then, its contribution to official reserves has risen continually as banks seek to diversify their reserves, and trade in the eurozone continues to expand. Former U.S. Federal Reserve Chairman Alan Greenspan said in September 2007 that the euro could replace the U.S. dollar as the world's primary reserve currency.
International status and usage of the euro Cypriot pound, also decided to adopt the euro. The base areas are an overseas territory of the United Kingdom, an EU member state which itself does not use the euro, but these bases are outside of the EU and under military jurisdiction. Their laws and currency have been aligned with those of the Republic of Cyprus, leading to the euro's adoption in the two areas. Montenegro and Kosovo have also used the euro since its launch, as they previously used the German mark rather than the Yugoslav dinar. Unlike the states above, they do not have a formal agreement with