Possible Clues:

• Land in South-East Europe, having changed at Cairo
• Country bird abandons western continent, some say
• Country with capital Zagreb
• Balkan state, became independent in 1991
• Film about river, island and a country
• One flying straight over huge landmass, we hear, in the country
• CIA informer hides nothing entering country
• Adriatic nation
• European republic
• Unusual actor I associated with a foreign country