U.S. Secretary of State Mike Pompeo (L) meets with Masoud Barzani, leader of the Kurdistan Democratic Party, in Arbil, Iraq, January 9, 2019. Andrew Caballero-Reynolds/Pool via REUTERS

U.S. Secretary of State Mike Pompeo (L) meets with Masoud Barzani, leader of the Kurdistan Democratic Party, in Arbil, Iraq, January 9, 2019. Andrew Caballero-Reynolds/Pool via REUTERS

U.S. Secretary of State Mike Pompeo (L) meets with Masoud Barzani, leader of the Kurdistan Democratic Party, in Arbil, Iraq, January 9, 2019. Andrew Caballero-Reynolds/Pool via REUTERS

U.S. Secretary of State Mike Pompeo (L) meets with Masoud Barzani, leader of the Kurdistan Democratic Party, in Arbil, Iraq, January 9, 2019. Andrew Caballero-Reynolds/Pool via REUTERS

U.S. Secretary of State Mike Pompeo (L) meets with Masoud Barzani, leader of the Kurdistan Democratic Party, in Arbil, Iraq, January 9, 2019. Andrew Caballero-Reynolds/Pool via REUTERS

U.S. Secretary of State Mike Pompeo and his wife Susan disembark from their aircraft as they arrive in in Arbil, Iraq, January 9, 2019. Andrew Caballero-Reynolds/Pool via REUTERS

U.S. Secretary of State Mike Pompeo (L) meets with Masrour Barzani, incoming Prime Minister of Iraq's autonomous Kurdistan Regional Government, in Arbil, Iraq, January 9, 2019. Andrew Caballero-Reynolds/Pool via REUTERS

US Secretary of State Mike Pompeo (L) meets with Nechirvan Barzani, outgoing Prime Minister of Iraq's autonomous Kurdistan Regional Government, in Arbil, Iraq, January 9, 2019. Andrew Caballero-Reynolds/Pool via REUTERS

Kurdish Regional Government President Masoud Barzani smiles during an interview with Reuters in Arbil, Iraq, June 2, 2013. To match Special Report MIDEAST-CRISIS/KURDS-LAND REUTERS/Azad Lashkari/File Photo

A flame rises from a chimney at Taq Taq oil field in Arbil, in Iraq's Kurdistan region, August 16, 2014. REUTERS/Azad Lashkari/File Photo

Iraqi Prime Minister Haider al-Abadi addresses the media during a joint news conference with Iraqi Kurdish President Massoud Barzani in Arbil, April 6, 2015. REUTERS/Azad Lashkari/File Photo

Mohamed Alabbar, chairman of Emaar Properties PJSC, speaks during the opening of the "Erbil Downtown" project in Arbil, the capital of Iraq's autonomous Kurdistan region, October 27, 2013. REUTERS/Azad Lashkari/File Photo

A displaced Iraqi child, who fled from Islamic State violence from Mosul, pose for a photograph at the refugee camp in Arbil, north of Baghdad, November 30, 2015. Picture taken November 30, 2015. REUTERS/Azad Lashkari

A view of a refugee camp in Arbil, north of Baghdad, November 30, 2015. Picture taken November 30, 2015. REUTERS/Azad Lashkari

United Nations Deputy Emergency Relief Coordinator Kyung-wha Kang speaks during a news conference at refugee camp in Arbil, north of Baghdad, November 30, 2015. Picture taken November 30 2015. REUTERS/Azd Lashkari

Vehicles drive out of the Erbil (Arbil) International Airport November 23, 2015. Iraq said it was suspending flights between Baghdad and the northern cities of Erbil and Sulaimaniya for two days starting on Monday due to military traffic from Russia's air campaign in neighbouring Syria. REUTERS/Azad Lashkari TPX IMAGES OF THE DAY

An airplane is seen at Erbil (Arbil) International Airport November 23, 2015. Iraq said it was suspending flights between Baghdad and the northern cities of Erbil and Sulaimaniya for two days starting on Monday due to military traffic from Russia's air campaign in neighbouring Syria. REUTERS/Azad Lashkari

An airplane is seen at Erbil (Arbil) International Airport November 23, 2015. Iraq said it was suspending flights between Baghdad and the northern cities of Erbil and Sulaimaniya for two days starting on Monday due to military traffic from Russia's air campaign in neighbouring Syria. REUTERS/Azad Lashkari

A Kurdish policeman stands guard at Erbil (Arbil) International Airport November 23, 2015. Iraq said it was suspending flights between Baghdad and the northern cities of Erbil and Sulaimaniya for two days starting on Monday due to military traffic from Russia's air campaign in neighbouring Syria. REUTERS/Azad Lashkari

A view of the Basirma refugee camp is seen in Arbil, north of Baghdad, November 9, 2015. The United Nations is expecting huge numbers of civilians to flee when Iraqi forces mount an offensive to retake the city of Mosul from Islamic State militants. It is not clear when Iraqi forces will be ready to attack the northern city. Picture taken November 9, 2015. REUTERS/Azad Lashkari

A displaced woman receives humanitarian supplies at Basirma refugee camp in Arbil, north of Baghdad, November 9, 2015. The United Nations is expecting huge numbers of civilians to flee when Iraqi forces mount an offensive to retake the city of Mosul from Islamic State militants. It is not clear when Iraqi forces will be ready to attack the northern city. Picture taken November 9, 2015. REUTERS/azad lashkari

Refugee children hold umbrellas as they go to school on a rainy day in Arbil, north of Baghdad, November 9, 2015. The United Nations is expecting huge numbers of civilians to flee when Iraqi forces mount an offensive to retake the city of Mosul from Islamic State militants. It is not clear when Iraqi forces will be ready to attack the northern city. Picture taken November 9, 2015. REUTERS/Azad Lashkari

Bruno Geddo, UNHCR representative in Iraq speaks during an interview with Reuters in Arbil, north of Baghdad, November 8, 2015. The United Nations is expecting huge numbers of civilians to flee when Iraqi forces mount an offensive to retake the city of Mosul from Islamic State militants. Picture taken November 8 2015. REUTERS/azad lashkari

Bruno Geddo, UNHCR representative in Iraq speaks during an interview with Reuters in Arbil, north of Baghdad, November 8, 2015. The United Nations is expecting huge numbers of civilians to flee when Iraqi forces mount an offensive to retake the city of Mosul from Islamic State militants. Picture taken November 8 2015. REUTERS/Azad Lashkari

Hostages who have been freed by Peshmerga Special Forces and U.S. forces listen to Iraqi Kurdish Regional President Massoud Barzani in Arbil, north of Baghdad, October 27, 2015. U.S. central command has released footage of an airstrike that destroyed an Islamic State prison in Iraq after a successful hostage rescue mission. CENTCOM said in a statement that coalition aircraft destroyed an Islamic State prison around 7 km (4 miles) north of the town of Hawija on Thursday (October 22), after dozens of Iraqi hostages were successfully freed by Peshmerga Special Forces and U.S. forces. REUTERS/Azad lashkari

Hostages who have been freed by Peshmerga Special Forces and U.S. forces listen to Iraqi Kurdish Regional President Massoud Barzani in Arbil, north of Baghdad, October 27, 2015. U.S. central command has released footage of an airstrike that destroyed an Islamic State prison in Iraq after a successful hostage rescue mission. CENTCOM said in a statement that coalition aircraft destroyed an Islamic State prison around 7 km (4 miles) north of the town of Hawija on Thursday (October 22), after dozens of Iraqi hostages were successfully freed by Peshmerga Special Forces and U.S. forces. REUTERS/Azad lashkari

Hostages who have been freed by Peshmerga Special Forces and U.S. forces listen to Iraqi Kurdish Regional President Massoud Barzani in Arbil, north of Baghdad, October 27, 2015. U.S. central command has released footage of an airstrike that destroyed an Islamic State prison in Iraq after a successful hostage rescue mission. CENTCOM said in a statement that coalition aircraft destroyed an Islamic State prison around 7 km (4 miles) north of the town of Hawija on Thursday (October 22), after dozens of Iraqi hostages were successfully freed by Peshmerga Special Forces and U.S. forces. REUTERS/Azad lashkari

Hostages who have been freed by Peshmerga Special Forces and U.S. forces listen to Iraqi Kurdish Regional President Massoud Barzani in Arbil, north of Baghdad, October 27, 2015. U.S. central command has released footage of an airstrike that destroyed an Islamic State prison in Iraq after a successful hostage rescue mission. CENTCOM said in a statement that coalition aircraft destroyed an Islamic State prison around 7 km (4 miles) north of the town of Hawija on Thursday (October 22), after dozens of Iraqi hostages were successfully freed by Peshmerga Special Forces and U.S. forces. REUTERS/Azad lashkari

Hostages who have been freed by Peshmerga Special Forces and U.S. forces listen to Iraqi Kurdish Regional President Massoud Barzani in Arbil, north of Baghdad, October 27, 2015. U.S. central command has released footage of an airstrike that destroyed an Islamic State prison in Iraq after a successful hostage rescue mission. CENTCOM said in a statement that coalition aircraft destroyed an Islamic State prison around 7 km (4 miles) north of the town of Hawija on Thursday (October 22), after dozens of Iraqi hostages were successfully freed by Peshmerga Special Forces and U.S. forces. REUTERS/Azad lashkari

Hostages who have been freed by Peshmerga Special Forces and U.S. forces listen to Iraqi Kurdish Regional President Massoud Barzani in Arbil, north of Baghdad, October 27, 2015. U.S. central command has released footage of an airstrike that destroyed an Islamic State prison in Iraq after a successful hostage rescue mission. CENTCOM said in a statement that coalition aircraft destroyed an Islamic State prison around 7 km (4 miles) north of the town of Hawija on Thursday (October 22), after dozens of Iraqi hostages were successfully freed by Peshmerga Special Forces and U.S. forces. REUTERS/Azad lashkari

Iraqi Kurdish Regional President Massoud Barzani speaks to former hostages who have been freed by Peshmerga Special Forces and U.S. forces in Arbil, north of Baghdad, October 27, 2015. U.S. central command has released footage of an airstrike that destroyed an Islamic State prison in Iraq after a successful hostage rescue mission. CENTCOM said in a statement that coalition aircraft destroyed an Islamic State prison around 7 km (4 miles) north of the town of Hawija on Thursday (October 22), after dozens of Iraqi hostages were successfully freed by Peshmerga Special Forces and U.S. forces. REUTERS/Azad lashkari

Hostages who have been freed by Peshmerga Special Forces and U.S. forces listen to Iraqi Kurdish Regional President Massoud Barzani in Arbil, north of Baghdad, October 27, 2015. U.S. central command has released footage of an airstrike that destroyed an Islamic State prison in Iraq after a successful hostage rescue mission. CENTCOM said in a statement that coalition aircraft destroyed an Islamic State prison around 7 km (4 miles) north of the town of Hawija on Thursday (October 22), after dozens of Iraqi hostages were successfully freed by Peshmerga Special Forces and U.S. forces. REUTERS/Azad lashkari

Kurdish peshmerga take part in a training session during German Defence Minister Ursula von der Leyen's visit at a camp in Banslawa in Arbil, north of Baghdad, October 27, 2015. German Defence Minister Ursula von der Leyen said that the government will look into sending more weapons to Peshmerga fighting Islamic State in Iraq. Von der Leyen has been in Iraq since late, she also paid a visit to a camp in Banslawa where German soldiers are currently training around 30 young Kurdish fighters. REUTERS/Azad lashkari

Kurdish peshmerga take part in a training session during German Defence Minister Ursula von der Leyen's visit at a camp in Banslawa in Arbil, north of Baghdad, October 27, 2015. German Defence Minister Ursula von der Leyen said that the government will look into sending more weapons to Peshmerga fighting Islamic State in Iraq. Von der Leyen has been in Iraq since late, she also paid a visit to a camp in Banslawa where German soldiers are currently training around 30 young Kurdish fighters. REUTERS/Azad lashkari

Female Kurdish Peshmerga take part in a training session during German Defence Minister Ursula von der Leyen's at a camp in Banslawa in Arbil, north of Baghdad, October 27, 2015. German Defence Minister Ursula von der Leyen said that the government will look into sending more weapons to Peshmerga fighting Islamic State in Iraq. Von der Leyen has been in Iraq since late , she also paid a visit to a camp in Banslawa where German soldiers are currently training around 30 young Kurdish fighters. REUTERS/Azad lashkari

Female Kurdish Peshmerga take part in a training session during German Defence Minister Ursula von der Leyen's visit at a camp in Banslawa in Arbil, north of Baghdad, October 27, 2015. German Defence Minister Ursula von der Leyen said that the government will look into sending more weapons to Peshmerga fighting Islamic State in Iraq. Von der Leyen has been in Iraq since late , she also paid a visit to a camp in Banslawa where German soldiers are currently training around 30 young Kurdish fighters. REUTERS/Azad lashkari

Kurdish peshmerga take part in a training session during German Defence Minister Ursula von der Leyen's visit at a camp in Banslawa in Arbil, north of Baghdad, October 27, 2015. German Defence Minister Ursula von der Leyen said that the government will look into sending more weapons to Peshmerga fighting Islamic State in Iraq. Von der Leyen has been in Iraq since late, she also paid a visit to a camp in Banslawa where German soldiers are currently training around 30 young Kurdish fighters. REUTERS/Azad lashkari

Female Kurdish Peshmerga female take part in a training session during German Defence Minister Ursula von der Leyen's (center R) at a camp in Banslawa in Arbil, north of Baghdad, October 27, 2015. German Defence Minister Ursula von der Leyen said that the government will look into sending more weapons to Peshmerga fighting Islamic State in Iraq. Von der Leyen has been in Iraq since late, she also paid a visit to a camp in Banslawa where German soldiers are currently training around 30 young Kurdish fighters. REUTERS/Azad lashkari

German Defence Minister Ursula von der Leyen is seen during her visit to a camp in Banslawa in Arbil, north of Baghdad, October 27, 2015. German Defence Minister Ursula von der Leyen said that the government will look into sending more weapons to Peshmerga fighting Islamic State in Iraq. Von der Leyen has been in Iraq since late , she also paid a visit to a camp in Banslawa where German soldiers are currently training around 30 young Kurdish fighters. REUTERS/Azad lashkari

German Defence Minister Ursula von der Leyen (C) speaks to German soldiers at a camp in Banslawa in Arbil, north of Baghdad, October 27, 2015. German Defence Minister Ursula von der Leyen said that the government will look into sending more weapons to Peshmerga fighting Islamic State in Iraq. Von der Leyen has been in Iraq since late , she also paid a visit to a camp in Banslawa where German soldiers are currently training around 30 young Kurdish fighters. REUTERS/Azad lashkari

German Defence Minister Ursula von der Leyen (C) walks past female Kurdish Peshmerga at a camp in Banslawa in Arbil, north of Baghdad, October 27, 2015. German Defence Minister Ursula von der Leyen said that the government will look into sending more weapons to Peshmerga fighting Islamic State in Iraq. Von der Leyen has been in Iraq since late , she also paid a visit to a camp in Banslawa where German soldiers are currently training around 30 young Kurdish fighters. REUTERS/Azad lashkari

German Defence Minister Ursula von der Leyen attends a joint press conference with Iraqi Kurdish Regional President Massoud Barzani in Arbil, Iraq, October 27, 2015. Von der leyen arrived in Baghdad on a two-day visit to Iraq for talks with Iraqi and Kurdish officials to discuss matters of military importance specifically in the fight against the Islamic State. REUTERS/Azad lashkari

Iraqi Kurdish Regional President Massoud Barzani (R) and German Defence Minister Ursula von der Leyen attend a joint press conference in Arbil, Iraq, October 27, 2015. Von der leyen arrived in Baghdad on a two-day visit to Iraq for talks with Iraqi and Kurdish officials to discuss matters of military importance specifically in the fight against the Islamic State. REUTERS/Azad lashkari

Iraqi Kurdish Regional President Massoud Barzani (R) and German Defence Minister Ursula von der Leyen attend a joint press conference in Arbil, Iraq, October 27, 2015. Von der leyen arrived in Baghdad on a two-day visit to Iraq for talks with Iraqi and Kurdish officials to discuss matters of military importance specifically in the fight against the Islamic State. REUTERS/Azad lashkari

Iraqi Kurdish Regional President Massoud Barzani attends a joint press conference with German Defence Minister Ursula von der Leyen in Arbil, Iraq, October 27, 2015. Von der leyen arrived in Baghdad on a two-day visit to Iraq for talks with Iraqi and Kurdish officials to discuss matters of military importance specifically in the fight against the Islamic State. REUTERS/Azad lashkari

German Defence Minister Ursula von der Leyen attends a joint press conference with Iraqi Kurdish Regional President Massoud Barzani in Arbil, Iraq, October 27, 2015. Von der leyen arrived in Baghdad on a two-day visit to Iraq for talks with Iraqi and Kurdish officials to discuss matters of military importance specifically in the fight against the Islamic State. REUTERS/Azad lashkari

German Defence Minister Ursula von der Leyen (L) chats with Iraqi Kurdish Regional President Massoud Barzani after a joint press conference in Arbil, Iraq, October 27, 2015. Von der leyen arrived in Baghdad on a two-day visit to Iraq for talks with Iraqi and Kurdish officials to discuss matters of military importance specifically in the fight against the Islamic State. REUTERS/Azad lashkari

Iraqi Kurdish Regional President Massoud Barzani (L) shakes hands with German Defence Minister Ursula von der Leyen, in Arbil, Iraq October 27, 2015. Von der leyen arrived in Baghdad on a two-day visit to Iraq for talks with Iraqi and Kurdish officials to discuss matters of military importance specifically in the fight against the Islamic State. REUTERS/Azad lashkari

Iraqi Kurdish Regional President Massoud Barzani (L) speaks with German Defence Minister Ursula von der Leyen, in Arbil, Iraq October 27, 2015. Von der leyen arrived in Baghdad on a two-day visit to Iraq for talks with Iraqi and Kurdish officials to discuss matters of military importance specifically in the fight against the Islamic State. REUTERS/Azad lashkari

Iraqi Kurdish Regional President Massoud Barzani (L) speaks with German Defence Minister Ursula von der Leyen, in Arbil, Iraq October 27, 2015. Von der leyen arrived in Baghdad on a two-day visit to Iraq for talks with Iraqi and Kurdish officials to discuss matters of military importance specifically in the fight against the Islamic State. REUTERS/Azad lashkari

Iraqi Kurdish regional President Massoud Barzani (R) meets with German Defence Minister Ursula von der Leyen in Arbil, Iraq, October 27, 2015. Von der leyen arrived in Baghdad on a two-day visit to Iraq for talks with Iraqi and Kurdish officials to discuss matters of military importance, specifically in the fight against the Islamic State. REUTERS/Azad lashkari

German Defence Minister Ursula von der Leyen speaks during news conference in Arbil, Iraq October 26, 2015. Von der leyen arrived in Baghdad on a two-day visit to Iraq for talks with Iraqi and Kurdish officials to discuss matters of military importance specifically in the fight against the Islamic State. REUTERS/Azad lashkari

German Defence Minister Ursula von der Leyen speaks during news conference in Arbil, Iraq October 26, 2015. Von der leyen arrived in Baghdad on a two-day visit to Iraq for talks with Iraqi and Kurdish officials to discuss matters of military importance specifically in the fight against the Islamic State. REUTERS/Azad lashkari

German Defence Minister Ursula von der Leyen speaks during news conference in Arbil, Iraq October 26, 2015. Von der leyen arrived in Baghdad on a two-day visit to Iraq for talks with Iraqi and Kurdish officials to discuss matters of military importance specifically in the fight against the Islamic State. REUTERS/Azad lashkari

German Defence Minister Ursula von der Leyen (C) arrives in Arbil, Iraq October 26, 2015. Von der leyen arrived in Baghdad on a two-day visit to Iraq for talks with Iraqi and Kurdish officials to discuss matters of military importance specifically in the fight against the Islamic State. REUTERS/Azad lashkari

German Defence Minister Ursula von der Leyen (L) meets with Abdul Karim Sultan Sinjari the interior minister of Kurdistan, in Arbil, Iraq October 26, 2015. Von der leyen arrived in Baghdad on a two-day visit to Iraq for talks with Iraqi and Kurdish officials to discuss matters of military importance specifically in the fight against the Islamic State. REUTERS/Azad lashkari

Iraqi Kurds carry a coffin containing the body of one of the 71 migrants who were found dead in an abandoned truck on an Austrian highway in August, during a repatriation ceremony after the arrival of four bodies at Arbil International Airport October 3, 2015. REUTERS/Azad Lashkari

Iraqi Kurdish Regional President Massoud Barzani (R) meets with Mar Gewargis Sliwa Patriarch of the Assyrian Church of the East, in Arbil, north of Iraq, September 28, 2015. REUTERS/Azad Lashkari

Members of the clergy attend a mass to choose the new Catholicos-Patriarch for the Assyrian Church of the East in Arbil, north of Iraq, September 27, 2015. REUTERS/Azad Lashkari

Members of the clergy attend a mass to choose the new Catholicos-Patriarch for the Assyrian Church of the East in Arbil, north of Iraq, September 27, 2015. REUTERS/Azad Lashkari