NEW : five defendants in east Africa case plead not guilty . Indictment says money was transferred through legitimate remitting businesses . The Somali group Abdi Mahdi Hussein has been waging war against the Islamist government .
NEW : Two defendants in San Diego case plead not guilty . Indictment says money was transferred through legitimate remitting businesses . The Islamist group Al-Shabaab has been waging war against the Somali government .