The commander sent out troops to stop the enemy's backup troops.

No one can stop the flight of the conceptual architects' thought.

The Saudi intent to thwart Iran's regional ambitions is clearest in Lebanon.

And what do you think the world should do to try to prevent it?

The United States also seeks to blunt efforts by Taliban insurgents trying to regain control of the country. (See "Obama Announces New Strategy for Afghanistan, Pakistan.")