This is the 17027th most frequent Korean word.
상황담당관이었던
"Someone who was in charge of a situation."
This usage of '상황담당관이었던' forms a relative clause describing '사람들' as those who held the role in the past.
상황담당관이었던 사람들이 모여 회의를 진행했습니다.
The people who were situation officers gathered to hold a meeting.
The word '상황담당관이었던' is used as an attributive clause to describe the subject '그' with his previous role as a situation officer.
상황담당관이었던 그는 문제를 신속히 해결했습니다.
As a situation officer, he quickly resolved the issue.
Here, '상황담당관이었던' is used to indicate a past role or profession of the subject '그녀', providing context to her career progression.