Russia’s Syrian campaign is part of larger confrontation with the U.S. and NATO. In addition to expanding the scope of its operations to bolster the regime of Bashar al-Assad, Russia issued an open challenge to NATO through repeated violations of Turkish airspace, the shadowing of U.S. Predator drones in Syria, and the launch of cruise missiles into Syria from the Caspian Sea through Iraqi airspace without warning the U.S. beforehand.