On this edition of Africa 54: Young men and women in a Tigray town march to a military training camp, officials from three of Ethiopia's region say they are sending troops in support of the federal army; A South African court granted former President Jacob Zuma's request for a delay in his arms deal corruption trial on Tuesday; And 2 armed men, including one who wielded a knife, attacked Mali's interim president Assimi Goita on Tuesday in the great mosque in the capital Bamako.