wear. Army officer uniforms were khaki in summer, olive in winter. Certain Army and Air Defense personnel (i.e., commandos and paratroops) may have worn camouflage uniforms. Air force officers had two uniforms for each season: a khaki and a light gray for summer and a dark blue and a light gray in winter. Naval officers wore white in summer and navy blue in winter while lower ranks wear the traditional bell bottoms and white blouse. The uniform for naval chief petty officers was a buttoned jacket, similar to that worn by American chief petty officers. Officers had a variety of headgear, including a service cap, garrison cap, and beret (linen in summer and wool in winter). The color of the beret varied by season and according to the officer's unit. Syrian Commando and Paratroop uniforms consist of lizard or woodland-patterned camouflage fatigues along with combat boots, helmets and bulletproof vests. Headgear consisted of a red or orange beret. The Syrian military provides NBC uniforms to soldiers to remain effective in an environment affected by biological or chemical agents. This uniform consisted of a Russian-made Model ShMS-41 mask similar to those made in the Desert Storm conflict. Previous models of the ShMS used a hose, while the improved "ShmS-41" used a canister-style Respirator. It is difficult to assess how well equipped the Syrian Arab Army is. Although hundreds of hours of videos showing dead and captured Syrian soldiers filmed by rebels have been uploaded to social media, none show this equipment having been carried by or issued to frontline soldiers. Rank insignia (1987) In 1987, according to a Library of Congress Country Study on Syria, the rank insignia of Syrian commissioned officers were identical for both the army and air force. These were gold on a bright green shoulder board for the army and gold on a bright blue board for the air force. Officer ranks were standard, although the highest is the equivalent of lieutenant general, a rank held in 1986 only by the commander in chief and the minister of defence. Navy officer rank insignia were gold stripes worn on the lower sleeve. The highest-ranking officer in Syria's navy is the equivalent of lieutenant general. Army and air force rank for warrant officers were indicated by gold stars on an olive green shield worn on the upper left arm. Lower noncommissioned ranks were indicated by upright and inverted chevrons