The Islamic Resistance in Iraq - an umbrella group of several Iran-backed Iraqi armed groups - on Monday claimed responsibility for the attack.
Iran seeks to inflame Syria and Iraq and to use the Gaza war to increase attacks on the US. Tehran wants America to leave the two countries so it can dominate them along with Lebanon and Yemen.
What unites Turkey and Iran is their opposition to the US role in Syria.
It is important to look back at how various forces involved in the Syrian turmoil go to this point in order to understand this complex conflict.
Turkey wants to normalize ties with Syria, but in order to do this it needs to see Damascus cater to some of Ankara’s demands.