US President Donald Trump has formally notified Congress that hostilities with Iran resumed on July 7, a move the White House says starts a new 60-day period during which US military operations can continue without congressional approval under the War Powers Act.
In a letter dated July 10 and seen by Reuters, Trump said he had ordered renewed military action after accusing Iran of breaching a memorandum of understanding signed on June 17 by attacking commercial vessels transiting the Strait of Hormuz.
“I directed this military action consistent with my responsibility to protect Americans and United States’ national security and foreign policy interests,” Trump said.
The letter outlines the administration’s earlier efforts to secure a diplomatic solution, including a ceasefire ordered on April 7 that was later extended. However, Trump said Iran’s actions in the Strait of Hormuz prompted Washington to resume military strikes.
Trump also announced that the US would reinstate its blockade of Iranian shipping in the Gulf while ensuring the Strait of Hormuz remains open to international maritime traffic.
Under the War Powers Act, the US president must notify Congress within 48 hours of initiating hostilities, while military operations undertaken without congressional authorisation must generally end within 60 days.
The administration argues the previous 60-day deadline no longer applied because hostilities had ended during the ceasefire period. Critics from both the Democratic Party and some Republicans have disputed that interpretation, saying the conflict had continued despite the truce.
Last month, both the Senate and House of Representatives approved a resolution directing Trump to withdraw US forces from hostilities with Iran, reflecting growing concern in Congress over the prolonged conflict. Trump criticised lawmakers who supported the measure, saying their actions made his job “more difficult” and gave “comfort” to Iran.
