ankara turkey military operations syria rebel-held province idlib aim prevent wave migration turkey prime minister binali yildirim say tuesday turkey say provide assistance rebel long back implement de-escalation agreement design reduce fight pro-government force area populous pocket syria still rebel hand sunday turkish army reconnaissance team scout idlib province expect military operation impose peace bitterly contest syrian northwest reason activities prepare groundwork prevent potential migrant wave country low tensions yildirim tell parliamentary meet rule ak party turkey already host around three million syrians one big supporters rebel fight syrian president bashar al-assad six-and-a-half-year war focus move oust secure border jihadist kurdish group yildirim also say turkey aim create control point idlib future deployments activities arm force idlib would help prevent internal conflict civilians militant group region turkish pm say idlib operation aim prevent migrant wave syria