Story highlights Photographer Tara Ruby offers to donate photos to Fort Bliss nursing room

Active duty soldiers volunteer to pose for photo breastfeeding their children

(CNN) There were no lactation rooms or dedicated spaces for breastfeeding mothers when Tara Ruby was on active duty in the Air Force from 1997 to 2001.

After her first son was born, Ruby remembers ducking into empty offices and bathrooms -- anywhere she could find privacy for 20 to 30 minutes at a time to pump.

That's why she was thrilled to learn about a new nursing room in the headquarters of Fort Bliss, the Army post in El Paso, Texas. It has comfortable chairs, a refrigerator for storing milk and a sink -- small things that make a big difference when you need to expel breast milk every few hours.

All that was missing was a touch of decor on the bare walls. To make the room more inviting, Ruby, now an El Paso photographer, offered her services to donate pictures for the room.

Her vision: Portraits of uniformed soldiers breastfeeding their children.