The Iranian operation is considered to be one of Iran's greatest achievements in the Iran–Iraq War. The Iranians were able to capture the Fao Peninsula, cutting off Iraqi access to the Persian Gulf in the process; this in turn hardened Iraqi attitudes to prosecute the war. The Fao Peninsula was later recaptured by Iraqi forces near the end of the war by the massive and illegal use of chemical weapons. For the main article on the battle, see the First Battle of Al-Faw.