About 80 men and women Air Force Reservists were deployed to Iraq on Sunday.
Members consist of the 302nd Air Lift Wing out of Peterson, 310th Space Wing out of Schriever and 710th out of Buckley Air Force Base.
The group will be gone for six months.
Family members say they were told several months ago about the deployment, but didn't realize how hard it was going to be to say good-bye.
"It really did sneak up on us," said Alexzandra Dapron. Dapron's husband was one of 80 deployed on Sunday.
"I hope they all come back okay," said Amity White. White's cousin is among the men and women deployed on Sunday. White said it's her cousin's first deployment.
"It's quite a mix. We have people who have never deployed before and we have people who are on their second and third deployment," said Maj. David J. Lehrman, Commander of the 302nd Security Force.
Some people's thoughts are already on the lonely holidays ahead. "I'm just going to have all my friends come over. Have friends over and cook dinner for them," said Dapron.
The mission of the Reservists is to defend and protect. It's something they'll be doing through February of 2009. "We're accepting a major responsibility by going over there and making sure it's a save environment for everybody," said Maj. Robert L. Haughey.
"I'm wondering how he's going to do over there and if he's going to be safe. I'm looking forward to when he comes back," said White.
Security Force members are usually only gone for about six months at a time.