US Secretary of State will arrive in Israel on Friday after talks in Ankara aimed at achieving ceasefire in Turkish invasion of northern Syria; talks to also focus on Iran

Senior administration official pushes back against criticism that troop pullout will embolden adversaries, says no change in policy on Iran

Joint statement does not condemn Turkish offensive against Kurds, nor does it call for operation to stop, only cautioning against allowing IS to regain foothold in region

Israeli TV says US secretary of state will meet with Netanyahu after Turkey trip to brief him on American withdrawal

No American soldiers injured in artillery strike near small outpost, as casualties mount, international criticism intensifies and 100,000 flee violence in Syrian Kurdistan