This is a timeline of events during the War in Iraq in 2015.

• January 8 – A suicide bomber targets a police checkpoint in the town of Youssifiyah, killing seven people.^[1]
• January 21 - Beginning of the Mosul Offensive in which Peshmerga forces captured large amount of territory surrounding Mosul.^[2]
• January 26 – Iraqi forces recapture the entire province of Diyala from Islamic State.^[3]
• January 29 – Battle of Kirkuk (2015) begins.

• February 1 – Kurdish forces overcome ISIL militants in the city of Kirkuk.^[4]
• February 24 – Multiple bomb attacks around Baghdad kill 37 people and wound dozens.^[5]

• March 2 – Second Battle of Tikrit begins.^[6]
• March 25 – American airstrikes on Tikrit, several Shiite militias go on strike.^{[citation needed]}

• April – May: Al-Karmah offensive
• April 1 – After a month of hard fighting, Iranians, Iraqis and Shiite militia overcome ISIL fighters and take Tikrit.^{[citation needed]}

• May 15: ISIL seizes control of the main Government building and city centre in Ramadi, the provincial capital of Anbar Province.^{[citation needed]}
• May 20: ISIL captures Ramadi.

• June 4: ISIS fighters close Ramadi dam gates, cut off water to loyalist towns^[7]
• June 13: Militants attack government forces near Iraq's Baiji refinery, killing 11 near the city of Baiji as part of the battle for control of Iraq's biggest refinery.^[8]

• July 13: Anbar offensive begins.^[9]
• July 17: A suicide bomber detonated a car bomb in a marketplace in the city of Khan Bani Saad during Eid al-Fitr celebrations, killing 120–130 people and injuring 130 more. Twenty more people were reported missing after the bombing.^[10][11]
• July 23: Turkey begins bombing alleged PKK bases in Northern Iraq.

This section needs expansion. You can help by adding to it. (August 2015)

• August 13: 2015 Baghdad market truck bombing
• August 21: ISIS imposes a curfew on Mosul after residents spray anti-ISIS graffiti on several walls.^[12]

• On October 22, Iraqi Security forces and the Popular Mobilization forces finished recapturing the city of Baiji, Iraq, its oil refinery and the surrounding region.

• November 13: Kurdish forces take control of Sinjar from ISIS after it was seized by IS forces in August 2014.^[13]

• December 16–17: Nineveh Plains offensive in which hundreds of ISIL fighters mount an attack against Kurdish positions but are repelled.^[14]

• 2015 in Iraq
• Terrorist incidents in Iraq in 2015
• Timeline of ISIL-related events (2015)
• Timeline of the Iraq War (2014)
• Timeline of the Iraq War (2016)
• Timeline of the Iraq War (2017)

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