"We are here to stay, and we will bring forces into the region as needed to deter aggression," Grynkewich told reporters during a digital press briefing when asked to elaborate on the effect of the recent US deployment of F-22 fighter jets in the area.
Grynkewich did not clarify what type of 'aggression' the United States seeks to deter. However, he said that the US jets would contribute to regional stability and efforts to reset the US relationship with their Russian counterparts in Syria.
"While the US does not have as many forces in the region on a daily basis as we did, say, three or four years ago, we do have the ability to very rapidly bring other forces from outside the region," he said.
The US Central Command (CENTCOM) said last week that it had deployed F-22 fighter jets to the Middle East in response to Russia's alleged "unprofessional" behavior in the region.
In May, the Russian Center for the Reconciliation of Opposing Sides in Syria accused US Air Force pilots of "gross violations" of deconfliction protocols in Syria after they allegedly activated their weapons systems when approaching Russian military aircraft.