Turkish military’s “devastating display of power” with its effective domestic drone program against the Syrian regime in Idlib has changed the military equation against Russia, NATO officials said, according to a report.

American news site, Insider, said Tuesday that security officials stressed Turkey has “a new ace up its sleeve” with new weapons that forced Russia to think twice about escalating against the Turkish government of Recep Tayyip Erdogan.

The report called Turkey’s 100 domestically produced drones, which was used in offensives, “cheap guided munitions with deadly efficiency.”

“The Turks have been developing their own drone program for almost

Read more: Turkish drones game-changer for Russia in Syria: Report