1.   Security chiefs expressed fears that retaliatory action by the IRA could create a sectarian war.

2.   When they caught the men who tried to bomb Syria into a sectarian war, the culprits were hanged in public.

3.   Shiite and Sunni Muslim extremist groups locked in a fierce sectarian war in Pakistan which has left hundreds of people dead in recent years.

4.   Sunni and Shiite Muslim militant groups are locked in a fierce sectarian war which has left hundreds of people dead over the last few years.

5.   Sunni and Shiite Muslim extremist groups are locked in a fierce sectarian war which has left hundreds of people dead over the last few years.

6.   They fought each other and millions of them were killed in sectarian wars.

7.   On Monday, loyalist prisoners, who exert a strong influence on Protestant paramilitaries, said they did not want a return to a sectarian war with the IRA.