Can 'By the autumn of 1993, U.S. commanders concluded that the main source of trouble was a warlord, Mohammed Farrah Aidid.' be viewed as neither a logical extension nor a contradiction of 'US commanders decided Aidid was the biggest source of trouble.'
By the autumn of 1993, U.S. commanders concluded that the main source of trouble was a warlord, Mohammed Farrah Aidid.###US commanders decided Aidid was the biggest source of trouble.