11.   During the games, the perennially warring Greek city states would observe a truce.

12.   Faced with Palestinian militants bent on confrontation, the Palestinian leadership issued orders to observe the truce reached yesterday at a summit in Egypt.

13.   Government officials insist however that they expect ETA will keep observing the truce it declared exactly six months ago on Tuesday.

14.   However, Hamas has not observed the truce and is opposed to the U.S. bombing campaign in Afghanistan.

15.   However, Hamas has not observed the truce and is opposed to the U.S. bombing campaign.

16.   Israeli Prime Minister Ariel Sharon had announced two weeks ago that he would unilaterally observe a truce and urged the Palestinians to do the same.

17.   Israeli Prime Minister Ariel Sharon claims Arafat was never serious about observing a truce.

18.   Israeli Prime Minister Ariel Sharon has alleged that Arafat was never serious about observing a truce.

19.   Invoking a tradition of the ancient Olympics in Greece, the IOC has called on warring parties around the world to observe a truce during recent games.

20.   Israeli tanks entered Palestinian-controlled territory in the northern Gaza Strip, a first since Sharon announced two weeks ago that he would unilaterally observe a truce.