Islamic State have lost 45% of their territory in Iraq and 10% of their territory in Syria.
— UK Against Daesh (@UKagainstDaesh) June 16, 2016
In early August 2014, Islamic State attacked Kurdish territory in northern Iraq and captured three towns. Consequently, the US and UK started supplying the Iraqi Kurdish peshmerga forces with weapons. There have also been sporadic clashes between ISIL fighters, and US and Canadian troops, several thousand of whom are acting in advisory and combat roles with Iraqi and Kurdish forces.
It is understood that Islamic State had lost 45% of the maximum territory they had gained in Iraq in December 2014, to Iraqi and American-led Coalition forces.
Counter-offensives by Iraqi and Kurdish armed forces, supported by the US-led coalition and by Iran backed Shiite militias have forced IS out of several cities — including Tikrit, north of Baghdad and Ramadi.
In Syria, IS is fighting the army of President Bashar Assad and other rebel groups opposed to his rule.
It is facing air strikes by the US-led coalition and by Russia which has sent aircraft to support its ally, the Syrian government.
Iraqi Prime Minister Haider al-Abadi last month said 2016 will be the year of “final victory” on the hard-line group.