A bill was proposed that would free any slave who joined the army to fight.

VOA: special.2009.12.03

He proposed giving immediate freedom to any slave who joined the army.

VOA: special.2009.12.03

So,he resigned and joined the army.

VOA: special.2010.08.05

Two hundred thousand blacks joined the Union Army of the North to fight the Southern separatist Confederate Army.

VOA: special.2011.02.11

He joined the United States Army in nineteen forty-one, during the Second World War.

VOA: special.2009.04.05

Edwin Hubble joined the American army and served in France.

VOA: special.2009.04.29