McDowell was worried that another large Confederate force west of Manassas Junction might join Beauregard's army.

VOA: special.2009.08.27

He asked that Johnston's ten thousand-man force in the Shenandoah Valley join him for battle.

VOA: special.2009.08.27

So he decided to trick him. While most of his army withdrew and prepared to join Beauregard, Johnston sent a small force to attack Patterson's army.

VOA: special.2009.08.27

The UN is now running a special educational programme for women wanting to join the force.

BBC: Liberia gets all-female peacekeeping force

And many of us are not ready to join the police force for a pension plan.

FORBES: Early Retirement Is Not Just A Daydream

Guinea will send troops to join a peacekeeping force in Somalia, the African Union has said.

BBC: Guinea to join AU peacekeeping force in Somalia