Former South African President who attended the 121st anniversary of the victory of Adwa said Ethiopia is an example of independence for Africa.He also said Adwa victory comes only 11 years after Berlin conference in which European powers agree to scramble Africa.”The principle of sacrifice is a lesson that Africans have learned from Ethiopia to attain victory”, he added.Mr. Thabo Mbeki urged Africans to unite to solve their own problems.He called up on Ethiopia to play a leading role in helping the continent.Adwa victory has communicated colonial powers that Africa is against colonialism and victorio