U.S. Defense Secretary Pete Hegseth said that Tuesday will be the most intense day yet of U.S. strikes inside Iran. The Islamic Republic, its firepower diminished, has vowed to fight on. Israeli Prime Minister Benjamin Netanyahu said the aim of the war is the popular overthrow of Iran's government. U.S. President Donald Trump sent contradictory signals about how long the war could last, fueling uncertainty and wild swings in financial markets Monday. Iranian Parliament Speaker Mohammad Bagher Qalibaf dismissed any suggestion that Tehran has sought a ceasefire. The U.S. joint chiefs chairman says Iran's missile attacks have fallen 90% and one-way attack drones have decreased 83% since the war began.