That has been their go to act of terrorism for the entirety of their governance. Iran placed mines in the Persian gulf in 1987 as well. "Give us what we want or we interrupt shipping"; the indescrminate destruction of the world economy, ships, and lives is how terrorists act. The leftists of the world complain whenever it happens, but appeasement demands the world gives in or experience terrorism. It's long past time that this regime that wants to make the Middle East into the glass capital of the world go down into the dust.