Battle of Mosul (2016–2017)
The Battle of Mosul (, "Ma'rakat al-Mawṣil"; , "Şeriy Mûsil") was a major military campaign launched by the Iraqi Government forces with allied militias, the Kurdistan Regional Government, and international forces to retake the city of Mosul from the Islamic State (ISIL), which had seized the city in June 2014. The battle was the world's single largest military operation in nearly 15 years, the largest since the 2003 invasion of Iraq and was considered the toughest urban warfare since World War II.