Niamey, Niger • The four U.S. soldiers killed last month in an ambush were helping track and fight Islamist militants along the Mali-Niger border in the hours before their death, according to the nation's defense minister and a wounded Nigerien soldier who survived the attack.
The accounts raise questions about the Pentagon's assertions that the American and Nigerien troops were on a low-risk reconnaissance mission and that chances of contact with militants were unlikely. They were, instead, operating in a dangerous and complex battle zone, where attacks happen frequently. U.S. troops are in Niger to train and advise, military officials have said, not to engage in combat missions.