The operation in Deh Bala, on the border with Pakistan, began at the end of April
About 600 American Green Berets and three Afghan commando units involved
Lt. Col. Josh Thiel said that the ISIS 'green zone' provided money and logistics
http://www.dailymail.co.uk/news/article-5936029/ISIS-capital-Afghanistan-captured-Afghan-troops-170-terrorists-killed.html