1. Thousands have been killed and displaced in sectarian violence since March 2013.

2. There has been a surge in sectarian violence in Iraq in the past year.

3. In the past year, the war has taken on sectarian overtones.

4. He said sectarian violence and the collapse of state institutions would also justify intervention.

5. Lebanon is sharply divided between supporters and opponents of Assad and along sectarian lines.

6. The current conflict in Iraq has acquired strong sectarian overtones.

7. Until now, the Islamic State has focused mainly on local sectarian battles.

8. That will mean more Sunnis in the government and fewer sectarian militias on the streets.

9. The fighting that has taken increasingly sectarian overtones.

10. In Iraq, many fear a renewed period of sectarian slaughter.

11. The violence has taken on sectarian overtones.

12. Sunni violence that threatened to rip Iraq apart along sectarian lines.

13. Hezbollah officials deny having any sectarian agenda.