517 AIR DEFENSE ARTILLERY WE SWEEP THE SKY
The distinctive unit insignia was originally approved for the 517th Coast Artillery (Antiaircraft) Regiment on 7 April 1938. It was redesignated for the 78th Coast Artillery (AA) Regiment on 31 October 1940. It was redesignated for the 78th AAA Gun Battalion on 23 June 1949. The insignia was redesignated for the 78th Antiaircraft Artillery Missile Battalion on 19 June 1956. It was redesignated for the 517th Air Defense Artillery Regiment on 29 December 1958.
Topic: 517th Air Defense Artillery (Read 2155 times)
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