 "MacKenzie" then made preparations to return to her new homeport of Long Beach, California, where she arrived on 28 January 1964 to prepare for extended duty in the Far East.She left the West Coast on 26 May and reached Yokosuka, Japan, on 13 June to begin over two years of continuous service in Oriental waters operating alternately in Japanese waters and off Vietnam fighting to repel Communist aggression.She specialized in screening aircraft carriers and shelling Communist positions ashore.