MUNICH, Germany -- Israeli Prime Minister Benjamin Netanyahu says Iran represents the “greatest threat to our world,” urging the international community to confront a “regime” in Tehran that “threatens peace.”

Netanyahu’s remarks on February 18 came during his first appearance at the Munich Security Conference, a high-profile annual gathering of world leaders, senior officials, and policy experts.

He delivered a stern denunciation of the Iranian leadership and criticized a landmark 2015 international deal to curb Tehran’s nuclear program in exchange for an easing of sanctions, saying it has not moderate Iran “internally or externally.”

Netanyahu said there were “striking similarities” between Iran and Nazi Germany, saying that Tehran wants to destroy Israel.

Iranian Foreign Minister Mohammad Javad Zarif was set to address the conference later on February 18.

At one point during his speech, Netanyahu held up what he said was a piece of an Iranian drone shot down by Israel earlier this month.

He called out to Zarif in the audience, saying: “Do you recognize this? You should. It’s yours.” Netanyahu warned that Iran should “not test Israel’s resolve.”