 There are also two independent 9K33 Osa SAM regiments, each with four batteries of 48 mobile SAMs.An unknown number of S-300 system were delivered to Syria in 2018.The Syrian early warning system comprises Long Track; P-12 Spoon Rest; P-14 Tall King; H-15 Flat Face; P-30 Big Mesh; P-35 Bar Lock; P-80 Back Net; PRV-13; PRV-16 Thin Skin mobile and static radar sites throughout Syria.