(LEAD) USFK's naval forces move headquarters to S. Korean base in Busan

(ATTN: TRIMS lead and para 2-4; ADDS more info in para 14-17; ADDS photo) By Park Bo-ram BUSAN, Feb. 19 (Yonhap) -- American naval forces in South Korea relocated their headquarters from Seoul to the southern port city of Busan on Friday, a move whic