Israel’s defense minister said he would pursue a “policy of enforcement” against Iran despite a cease-fire, aiming to prevent Tehran from rebuilding its air power, advancing nuclear projects or developing “threatening long-range missiles.”

The comments by Defense Minister Israel Katz to local news channels on Thursday evening suggested that Israel was contemplating more strikes on Iran even after President Trump announced a truce between the two countries on Tuesday.

Iran’s foreign minister warned on Thursday night that his country would respond to anything it considered a breach of the cease-fire.

Mr. Katz, speaking to Israel’s Channel 12, said the Israeli military was still finalizing what he called an “enforcement policy” with Iran.

“We have the determination to implement it: preserving aerial superiority, preventing the advancement of nuclear projects and preventing the advancement of threatening long-range missiles,” he said.

Such a wide-ranging Israeli interpretation of threats from Iran could imperil the truce, which ended a 12-day war that the United States briefly joined when its war planes bombed three Iranian nuclear sites.