Retired Air Force Sergeant Marty Klein joined the service back in 1967, but within three years had to be discharged. 

"I didn't know which way to turn. I didn't know how to live a life without sight. It was very very difficult," Klein said.

Shortly after entering the service, he contracted an eye disease that eventually left him completely blind. Klein has been determined to help other disabled veterans and bring awareness to veteran suicide rates, which was the driving force behind his recent documentary "Why Can't We Serve."

His film will be shown this weekend at the seventh annual Veteran Arts Showcase at the FDR Presidential Library and Museum.

"All people that have disabilities are completely capable of living a vibrant life," Klein said.

The film focuses on how Klein believes disabled soldiers should still be allowed to serve their country in non-combat roles, which could help reduce veteran homelessness and suicide.

"Some of them when they get wounded, on the job or in combat, they basically get a disability check and are pushed out," Klein said. "[We need to] give them a chance to remain in the military and re-classed to a job they can do on a computer. [It] will give them a purpose, still, in life."

Along with Klein's film, this year's showcase features lots of artists, poets, and performers who are active-duty military, veterans, or their family members.

For specific dates and times the showcase will be open this weekend, visit their website.