11.   With the army concentrating its forces in the north for the Jaffna offensive, Tamil rebels took advantage of weaknesses elsewhere to mount attacks on the east coast.

12.   With the capture of Zepa, Bosnian Serbs are expected to concentrate their force on Gorazde despite the threat of strong NATO airstrikes.

13.   With U.N. observers monitoring a cease-fire in the formal war, Karake can concentrate his forces on finding the rebels hidden behind the lines.

14.   According to Kabul military officials the Taliban have concentrated their forces in two Logar locations in preparation for an attack.

15.   Experts here said UN commanders must start concentrating their forces as much as possible in order to facilitate a swift departure.

16.   UN spokesman Major Herve Gourmelon added that Bosnian Serb commanders were concentrating their forces around the town in order to defend it.

17.   UN spokesman Major Herve Gourmelon added that Bosnian Serb commanders were also concentrating their forces around the town in order to defend it.

18.   The attacks were launched this week after MILF guerrillas, backed by the Abu Sayyaf, were seen concentrating their forces in the area.

19.   The attacks were launched earlier this week after MILF guerrillas were seen concentrating their forces in the area.