(4th LD) Trump reiterates 'ironclad commitment' to defend S. Korea: White House
(ATTN: ADDS more info in paras 14-25)
WASHINGTON/SEOUL, Jan. 30 (Yonhap) -- U.S. President Donald Trump reaffirmed Washington's "ironclad commitment" to South Korea's defense and agreed to take steps to bolster joint defense capabilities, the White Ho