Space Force members will be known as “Guardians” from now on, Vice President Michael R. Pence announced Dec. 18.

“Soldiers, Sailors, Airmen, Marines, and Guardians will be defending our nation for generations to come,” he said at a Dec. 18 White House ceremony celebrating the Space Force’s upcoming birthday.

As the Space Force turns 1 year old on Dec. 20, abandoning the moniker of “Airman” is one of the most prominent moves made so far to distinguish space personnel from the Air Force they came from. An effort to crowdsource options brought in more than 500 responses earlier this year, including “sentinel” and “vanguard.”