But experts say many additional forces will help determine the success of the initiative.

The armed forces and volunteer workers helped maintain basic services.

From the Chinese side, he said, two contradictory forces help fuel this cycle.

The pumping force of the heart should help to keep a normal pressure within the blood vessels.

"Do we have any forces close enough to help them?"

They fight civil wars and always call the outside forces to help one side or the other.

The outside forces help them and take over the country.

These same forces are helping to undermine the less fortunate among us.

The second force would help maintain security after the Americans leave.

Psychological forces may also help explain why it takes so long for a stock to reach its full value.