11.   Both countries have expressed willingness to use nuclear weapons to defend their territory.

12.   Agha said the Taliban would defend territory they still control -- including their home base, Kandahar -- after a week of sweeping retreats across Afghanistan.

13.   But cable operators have been forced to upgrade their systems and services to defend their territories.

14.   Comerico is citified in an industry dominated by rural fishermen, loud and aggressive in defending his territory and vaunting his success.

15.   Hybrid offspring of these crosses are more successful than either parent species at defending breeding territories, and so enjoy greater reproductive success.

16.   In nature, wild dogs are often required to defend their territory against the attack of a predator.

17.   It is defending territory or trying to meet a possible prom date.

18.   Janesick expects the CCD makers to defend their territory with a vengeance, resisting new technologies with fierce price competition.

19.   No matter how good the interceptors, experts reasoned, these single sites would be unable to defend large territories.

20.   So instead of defending separate territories, the ants behave like a single fluid colony in their new territory.