Many senior U.S. officials remain skeptical that the U.S. and Israeli military operation against Iran will lead to a regime change in the near term.

A senior Israeli official told Reuters that Iran's Supreme Leader Ayatollah Ali Khamenei was killed in Israeli and U.S. strikes.

BRUSSELS: How long will it last? Will it grow? What will the conflict and the reported death of Iran’s Supreme Leader Ayatollah Ali Khamenei. mean to us — and to global security…