Control of navigable rivers can increase a country's potential for economic and political power, but there are drawbacks.
Jun 6, 2013 | 20:26 GMT
Belgrade maintains both relationships to yield more benefits.
Apr 5, 2013 | 05:15 GMT
Citizens in the EU periphery want to migrate to the core, but the countries there are unwilling to receive them.
Jan 30, 2013 | 20:30 GMT