This is the 16536th most frequent Korean word.
사드에
"사드에" is a conjugated form meaning "on/at/in THAAD" (Terminal High Altitude Area Defense, a missile defense system).
The word '사드에' is used to indicate the topic relating to the THAAD missile defense system, with '에 대한' expressing 'about' or 'regarding'.
사드에 대한 논쟁은 여전히 계속되고 있다.
The debate about THAAD is still ongoing.
Here, '사드에' introduces the subject THAAD to discuss actions or conditions, with '에' suggesting concern or relevance to THAAD.
사드에 추가 비용이 필요할 것이다.
Additional costs might be required for THAAD.
In this case, '사드에 대해' employs '에 대해', which means 'regarding', to frame the action related to THAAD, specifying the topic of the governmental announcement.