Four Star US Army General Campbell and Vice Chief of Staff (March 2013-August 2014) assumed command of ISAF from August to December of 2014. He was then appointed Commander of NATO's Afghanistan Operation Resolute Support, "a training, advisory, assistance, and counter-terror mission" from which he retired in March 2016, four months prior to Turkey's failed coup. ... According to Yeni Savak:

General John F. Campbell was one of the top figures who organized and managed the soldiers behind the failed coup attempt in Turkey, sources close to ongoing legal process of pro-coup detainees said. ... The ongoing investigation unveiled that Campbell had paid at least two secret visits to Turkey since May, until the day of the coup attempt.

The report intimates that General Campbell operated in tandem with the Fethullah Gülen organization. It also intimates that US intelligence and military were behind the failed coup.

Military sources said Campbell, who was the commander of ISAF between August 26, 2014 and May 1, 2016, had made some top secret meetings in Erzurum military base and Adana İnicrlik Airbase. ... Military sources said that Campbell was the man, who directed the process of trending / blacklisting the military officers in the base. If the coup attempt was successful, Campbell would visit Turkey in a short time, according to the sources.

The report also examined the alleged money transactions focussing on the role of The Nigeria branch of the United Bank of Africa (UBA), which allegedly constituted "the main base for the last six-months of money transactions for the coup plotters". The report also underscored the role of the CIA in implementing the money transfers

Millions of dollars of money has been transferred from Nigeria to Turkey by a group of CIA personnel. The money, which has been distributed to an 80-person special team of the CIA, was used to convince pro-coup generals. More than 2 billion dollars were distributed during the process leading to the coup. After taking money from their bank accounts, the CIA team hand delivered it to the terrorists under the military dresses.

The money was distributed to military officers who were favorable to the Gullenist cause, according to the report.

"They investigated the soldiers' trends, their personalities and family background. All soldiers were categorized in three groups: opponents, neutrals, and supporters." ...