This is the 10629th most frequent Korean word.
국제현안에
"International issues" or "global affairs."
Here, "국제현안에" (about international issues) is used as a topic marker for emphasis in the sentence.
국제현안에 대해 토론회가 열렸습니다.
A discussion about international issues was held.
In this sentence, "국제현안에 대한" modifies "정책" to specify the type of policies being discussed.
이번 회의에서 국제현안에 대한 정책이 발표되었습니다.
Policies regarding international issues were announced in this conference.
In this context, "국제현안에" is used with "관심이 많습니다" to express the idea of having interest in a specific area.