In pictures: Rex Tillerson attends Saudi-Iraqi meeting in Riyadh

Secretary of State Rex Tillerson oversaw the first meeting of a new alliance between Saudi Arabia and Iraq as the US looks to blunt spreading Iranian influence in Iraq and across the Gulf region.
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Saudi King Salman bin Abdulaziz (C) shaking hands with US Secretary of State Rex Tillerson (C-R) after a meeting of the Saudi-Iraqi Bilateral Coordination Council in the capital Riyadh on October 22, 2017.
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Saudi King Salman bin Abdulaziz (C) motions for attendees to take their seats at the start of a meeting of the Saudi-Iraqi Bilateral Coordination Council in the capital Riyadh on October 22, 2017.
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Saudi King Salman bin Abdulaziz speaks during a meeting of the Saudi-Iraqi Bilateral Coordination Council in the capital Riyadh on October 22, 2017.
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US Secretary of State Rex Tillerson listens through his earpiece to a speech translation during a meeting of the Saudi-Iraqi Bilateral Coordination Council in the capital Riyadh on October 22, 2017.
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US Secretary of State Rex Tillerson (C-R) embraces Iraqi Prime Minister Haider al-Abadi (C-L) prior to a meeting of the Saudi-Iraqi Bilateral Coordination Council in the capital Riyadh on October 22, 2017.
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Iraqi Prime Minister Haider al-Abadi listens during a meeting of the Saudi-Iraqi Bilateral Coordination Council in the capital Riyadh on October 22, 2017.
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US Secretary of State Rex Tillerson (L) is received by Saudi King Salman bin Abdulaziz al-Saud (R) prior to their meeting in the capital Riyadh on October 22, 2017.
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Iraqi Prime Minister Haider al-Abadi (C-L) and Foreign Minister Ibrahim al-Jaafari (L) are received by Saudi King Salman bin Abdulaziz (C-R) before a meeting of the Saudi-Iraqi Bilateral Coordination Council in the Saudi capital Riyadh on October 22, 2017.
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US Secretary of State Rex Tillerson (L) meets with Saudi Crown Prince Mohammed bin Salman at Al-Awja farm in the capital Riyadh on October 22, 2017.
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Saudi King Salman bin Abdulaziz (C) attends a meeting of the Saudi-Iraqi Bilateral Coordination Council with US Secretary of State Rex Tillerson (C-R) and Iraqi Prime minister Haider al-Abadi (C-L), accompanied by Iraqi Foreign Minister Ibrahim al-Jaafari (L), in the Saudi capital Riyadh on October 22, 2017.