Following a 20 July suicide bombing in the Şanlıurfa Province of Turkey , believed to have been carried out by ISIL militants , as well as an ISIL cross-border attack that killed a Turkish serviceman on 23 July , Turkish armour and aircraft struck ISIL targets in cross-border engagements in northern Syria . Turkey also agreed to let the United States use the USAF Incirlik Air Base for strikes against ISIL
suicide bombing
2015 Suruç bombing
American-led intervention in the Syrian Civil War