 The membership of al-Shabaab also includes various foreign fighters from around the world, according to Islamic hardliner Mukhtar Robow "Abu Manssor".In January 2009, Ethiopian forces withdrew from Somalia and al-Shabaab carried on its fight against former ally and Islamic Courts Union leader President Sharif Ahmed, who was the head of the Transitional Federal Government.Al-Shabaab saw some success in its campaigns against the weak Transitional Federal Government, capturing Baidoa, the base of the Transitional Federal Parliament, on January 26, 2009, and killing three ministers of the government in a December 3, 2009 suicide bomb attack on a medical school graduation ceremony.