1.   This led rebel leaders to agree to combine their forces in one division under a unified command structure.

2.   This probably evolved from a harem system where the females combined forces to overpower and drive out the dominant male.

3.   University zoologists and government vets are combining forces to investigate the disease.

4.   University zoologists and government vets are combining forces to investigate the disease.

5.   Analysts disagree on whether the company should follow the lead of America Online and Time Warner by combining forces with a bigger media suitor.

6.   All around it, media companies are acquiring one another, expanding their portfolios of media properties and otherwise combining forces.

7.   Agencies will combine forces to conduct saturation patrols and sobriety checkpoints around the Valley.

8.   Broadcasters have been amassing clusters of stations that allow them to boost advertising revenue and cut costs by combining sales forces.

9.   Broadcasters have been amassing clusters of stations, boosting their ad revenue by reaching wider audiences and cutting costs by combining sales forces.

10.   Broadcasters have been amassing clusters of stations, boosting their advertising revenue by reaching wider audiences and cutting costs by combining sales forces.