Army Col. Andrew Morgan wasn't even born when Neil Armstrong stepped on the moon.

However, Morgan's launch to the International Space Station Saturday was part of the 50th anniversary of Apollo 11 -- the world's first manned lunar landing.

Morgan and two other astronauts -- Russian Alexander Skvortsov and Italian Luca Parmitano -- blasted off from the Baikonur Cosmodrome in Kazakhstan for rendezvous with the ISS, 250 miles above the Earth. It was Morgan's first spaceflight.

All three Apollo 11 astronauts who approached the moon July 20, 1969 -- Neil Armstrong, Buzz Aldrin and Michael Collins -- were military jet pilots. Morgan's background is quite different, however.

When not training as an astronaut, Morgan serves as an Army emergency physician. The doctor served in elite special operations units worldwide, including in combat operations in Iraq, Afghanistan and Africa.

In June 2013, Morgan was selected to become a NASA astronaut. In July 2015, he completed astronaut training that included Russian language studies, scientific and technical briefings, intensive instruction in ISS systems, spacewalk and spacesuit operations, robotics, physiological training, T-38 flight training,; Earth science training, and water and wilderness survival training.

Morgan said his late great uncle, Harry "Clink" McClintock, inspired him to join the Army and learn to parachute, something he did at the U.S. Military Academy in West Point, New York, where he was a member of the West Point Parachute Team, the "Black Knights." In 1996, his team earned the collegiate national title in competitive skydiving.

As for inspiration for becoming an astronaut, Morgan said: "When I was in the 4th grade, I was going to elementary school in Austin, Texas. It was around the time of the Texas sesquicentennial and we all had to write to famous Texans and I wrote to astronaut Alan Bean.

"I got a letter back from him and it was so exciting to hear back from him," he continued. "Astronauts, it seemed … were everyone's heroes at the time, but to actually get something back that the postmark was NASA, that put astronauts on a pedestal for me forever."

McClintock jumped into Normandy as a paratrooper with the 101st Airborne Division on D-Day, June 6, 1944, Morgan said. "Brave Soldiers like him inspired me to serve. Thank you Uncle Clink, and thank you the 'Greatest Generation,' for your service."

Looking back at Apollo 11, Morgan said it was an American effort. Today, 50 years later, the ISS is an international effort -- "it's a beautiful contrast," he said.