11.   Environmental groups are waging an aggressive campaign against the venue, saying the project would damage fragile marshlands.

12.   For the past decade militant Muslim groups have been waging a bloody insurgency in Indian-held Kashmir demanding either outright independence or union with Islamic Pakistan.

13.   Hundreds of refugees had already fled the camp after armed gangs went on a rampage and rival groups waged a bitter artillery duel within the camp.

14.   More than a dozen Muslim guerrilla groups are waging a bloody secessionist war in Indian Kashmir for its merger with Pakistan or independence.

15.   Several other groups also have waged bombing campaigns around Athens.

16.   Several small Islamic guerrilla groups have been waging a campaign of violence for more than a decade against the government.

17.   Several Islamic groups have been waging a three-decade struggle for Muslim self-rule.

18.   Several Islamic groups have been waging a three-decade-old struggle for Muslim self-rule.

19.   Since then, the rival groups have been waging a bitter and increasingly violent battle for control of the city.

20.   Syria argues that militant Palestinian groups are waging a legitimate struggle against Israeli occupation and are therefore not terrorist.