A rough -- and highly contested -- history of modern Serbia is written out in murals and slogans on the walls of its capital Belgrade. Portraits of war lords, rock stars and poets along with odes to its "brother nation" Russia and claims to neighbouring Kosovo are among the most common found across the city. "Since I would say about five years, there has been a constant war over the walls" Hana Suica, a researcher who is writing a book on the subject tells AFP. IMAGES AND SOUNDBITES