 Six Turkish armored vehicles were involved in the patrol, along with several American armored vehicles, with the U.S. vehicles leading the way.The patrol headed to a Kurdish-controlled base to inspect it and to ensure that trenches and sand berms had been removed.On 10 September, Turkish Foreign Minister Mevlüt Çavuşoğlu accused the United States of "stalling" the implementation of the zone and reasserted the threat that Turkey would unilaterally invade Northern Syria, if it deemed it necessary.