Troops ready for combat duty have at least doubled since 1988.

Pilots got two months of training before being sent into combat duty.

After the water, transforming the first combat duty was established.

It was put into service for experimental combat duty in 2003.

If the current laws make women eligible for combat duty, they vote.

She was retired from combat duty and spent the rest of the war as a training boat.

The 99th was finally considered ready for combat duty by April 1943.

Due to his age (53) he was too old for combat duty.

Of those 20,000, about 12,000 remained more or less fit for combat duty.

Carpenter, with many others, played an important part in getting the B-29s ready for combat duties.