That's another excellent question.
I think countries in the region—and my colleague can probably speak to this in more detail—are weighing different countries off against each other, so the European Union remains the key gravitational force in that region that is helping to ensure economic security and national security.
The role of the People's Republic of China is something to be concerned about. It's not an area that I have done extensive research on with regard to the Balkans, but I have seen it elsewhere. On the role of China particularly with debt, something we're not really paying enough attention to is the degree to which the level of debt can be exploited for geopolitical gain.