Demonstrators show armaments used by anti-riot and military policemen during a protest against the arrest of opposition leader Kizza Besigye in Kireka suburb of Uganda's capital Kampala, April 18, 2011. Ugandan opposition leader Besigye and a number of associates were arrested as they prepared to take part in a third round of protests over rising food and fuel prices, police said on Monday. REUTERS/James Akena