https://www.reuters.com/article/us-somalia-attacks-insight-idUSKCN1BA1YQ
In the case of last week’s raid, a veteran Western expert on the security situation in Somalia said it seemed likely that the U.S. troops had “been drawn into local clan dynamics” by whoever supplied their intelligence.
“The real question is, what was the source of the intelligence and why did they believe it?”
U.S. officials acknowledge that developing the intelligence needed to pursue al Shabaab takes longer than in, say, Iraq or Syria, where the U.S. military devotes vastly more resources. Somalia’s complex tribal dynamics are also a complicating factor.