The assessment was included in at least one of President Donald Trump’s written daily intelligence briefings at the time, according to the officials.
The latest incident claimed by Taliban took place in Nangarhar province. There've been many cases when Afghan soldiers or police turned their guns on international troops in so-called "green-on-blue" attacks.
The unidentified gunman, who was later killed, opened fire while the Americans were at the gate of an Afghan military ammunition supply depot near Camp Moreshead outside Kabul.
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