Army - Vietnam Combat Vet - 3rd Radio Research Unit (rru) W Vn Svc Long Sleeve

• 100% comfortSoft cotton
• Double-needle stitching throughout
• Coverseamed neck with lay flat collar
• Tag-free neck label
• Shoulder-to-shoulder tape
• Comfortable rib knit cuffs
• Sport Grey is 99% cotton, 1% polyester; Light Steel is 90% cotton, 10% polyester

The 3rd Radio Researchd Unit (Detachment) were among the earliest U.S. military advisors in Vietnam;
3rd RRU later grew to become the 509th Radio Research Group
These occupations, which required a top secret clearance with Special Intelligence/crypto special clearances,
were essential to U.S. Cold War efforts. ASA units usually operated in four groups using revolving shifts to provide coverage twenty-four hours a day,
seven days a week.