JERUSALEM — Prime Minister Benjamin Netanyahu said that Israel, together with the United States, had dealt the "heaviest blow" Iran's leadership had ever seen, as Israel began observing its annual Holocaust Remembrance Day. "We delivered the heaviest blow in that regime’s history. It stands weaker than ever before," Netanyahu said in remarks at a state ceremony held in the Yad Vashem Holocaust memorial center in Jerusalem and broadcast on Monday.Israel has been engaged in a multi-front conflict since October 7, 2023, when Iran-backed Palestinian militant group Hamas attacked the country, triggering a deadly war in Gaza that ultimately drew in other...