ADDIS ABABA, Jan 31 (Reuters) - An African summit ended on Wednesday with a proposed peacekeeping force for Somalia still lacking firm commitments for thousands of troops. African leaders spent much of the second day of their summit discussing the need to urgently raise an 8,000 strong force for Somalia. But Ghana's President John Kufuor told a final press conference the number firmly pledged so far was only 4,000 with other countries still mulling contributions.
