goma democratic republic congo rebel spokesman eastern congo say friday movement intend march across country capital kinshasa depose president joseph kabila refuse quit power end mandate last year lead self-proclaimed general william yakutumba rebel force call national people coalition sovereignty congo cnpsc emerge one strong group democratic republic congo lawless eastern borderlands since formation june analysts doubt cnpsc capacity make move capital however briefly capture strategic towns june advance week within kilometers city uvira along lake tanganyika force u.n. helicopters intervene help congolese troop drive back congo beset wave prison break rebellions lawlessness since kabila refusal step december even go reach kinshasa dalton waubwela mwila secretary-general cnpsc tell reuters telephone interview ultimate objective kinshasa kabila father laurent come power 1997 back rebellion start eastern congo march 2,000 kilometers 1,200 miles capital crucially receive back armies neighbour rwanda uganda waubwela say cnpsc include number arm group eastern congo include home province south kivu neighbour provinces north kivu tanganyika maniema heavy fight also report week yakutumba form militia bear name 2007 establish warlord gold smuggler arm trafficker south kivu fizi territory look try raise insurrection nationwide support regional war eastern congo hold vast reserve gold tin coltan minerals 1996-2003 kill millions spawn dozens arm group continue exploit natural resources prey local populations waubwela claim coalition include 10,000 men analysts estimate size militia close 300-450 say would require significant foreign back fresh alliances able occupy much territory let alone threaten kabila kinshasa waubwela say rebel arm weapons capture congolese force speak reporters eastern city goma thursday army top general didier etumba dismiss cnpsc flash pan army would put rebellion yet another security headache kabila also try tame brutal insurgency central congo kasai region kill 5,000 people displace 1.4 million past year eastern congo rebel aim march kinshasa spokesman