query: conflict steven roberts 
supports: The 2003 invasion of Iraq lasted from 20 March to 1 May 2003 and signalled the start of the Iraq War, which was dubbed Operation Iraqi Freedom by the United States (prior to 19 March, the mission in Iraq was called Operation Enduring Freedom, a carryover from the War in Afghanistan). The invasion consisted of 21 days of major combat operations, in which a combined force of troops from the United States, the United Kingdom, Australia and Poland invaded Iraq and deposed the Ba'athist government of Saddam Hussein. The invasion phase consisted primarily of a conventionally fought war which included the capture of the Iraqi capital of Baghdad by American forces with the implicit assistance of the United Kingdom alongside Australia and Poland. Operation Enduring Freedom (OEF) comprises several subordinate operations: Umm Qasr (also transliterated as "Um-qasir", "Um-qasser"), is a port city in southern Iraq. It stands on the canalised Khawr az-Zubayr, part of the Khawr Abd Allah estuary which leads to the Persian Gulf. It is separated from the border of Kuwait by a small inlet. A bridge across the waterway linked the port with Kuwait prior to the 1991 Persian Gulf War. Sergeant Steven Mark Roberts was the first British soldier to die in the 2003 invasion of Iraq on 24 March 2003 . He was accidentally shot by a colleague using a tank - mounted machine gun who was trying to help Roberts as he struggled with a stone - wielding Iraqi protester at Az Zubayr , near Basra . The Iraqi protester was killed in that same incident . The gunner who shot Roberts who had not been taught that the gun was harder to aim at short range . Sgt Roberts had been serving with the 2nd Royal Tank Regiment , Cyclops Squadron . Basra, also al-Barah, is an Iraqi city located on the Shatt al-Arab between Kuwait and Iran. It had an estimated population of 1.5 million in 2012. Basra is also Iraq's main port, although it does not have deep water access, which is handled at the port of Umm Qasr. The Iraq War was a protracted armed conflict that began in 2003 with the invasion of Iraq by a United States-led coalition that toppled the government of Saddam Hussein. The conflict continued for much of the next decade as an insurgency emerged to oppose the occupying forces and the post-invasion Iraqi government. An estimated 151,000 to 600,000 or more Iraqis were killed in the first 34 years of conflict. The United States officially withdrew from the country in 2011 but left private security contractors in its place to continue the war. It again became re-involved in 2014 at the head of a new coalition; the insurgency and many dimensions of the civil armed conflict continue. Iran (, also , ; ' ), also known as Persia, officially the Islamic Republic of Iran (' ), is a sovereign state in Western Asia. It is bordered to the northwest by Armenia, the "de facto" Nagorno-Karabakh Republic, and Azerbaijan; to the north by the Caspian Sea; to the northeast by Turkmenistan; to the east by Afghanistan and Pakistan; to the south by the Persian Gulf and the Gulf of Oman; and to the west by Turkey and Iraq. Comprising a land area of , it is the second-largest country in the Middle East and the 18th-largest in the world. With 82.8 million inhabitants, Iran is the world's 17th-most-populous country. It is the only country with both a Caspian Sea and an Indian Ocean coastline. The country's central location in Eurasia and Western Asia, and its proximity to the Strait of Hormuz, make it of great geostrategic importance. Tehran is the country's capital and largest city, as well as its leading economic center.
candidates: 2003 invasion of iraq afghanistan gulf war iraq war operation enduring freedom
answer: iraq war