Iran’s top envoy to the United Nations this week sent a letter to the UN Security Council and Secretary General Ban Ki-Moon to register his alarm at a recent thinly-veiled nuclear threat by a high-ranking Israeli official.

UN Ambassador Gholam Ali Khoshrou, who wrote the missive, said that the nuclear threats were an example of the “regime’s aggressive nature.”

The threats in question were made earlier this month in Jerusalem by Israeli Defense Minister Moshe Yaalon. When asked, “Is dealing with a threat like Iran something democracies are not structured well to do?” the minister directly referenced the U.S. nuclear bombing of Japan during World War II.

As shown in this video, Yaalon stated: