Says Jeff Scherzberg, "We spent a lot of time together as kids. This is another chance to be together."
At 27, Jeff is the oldest, followed by Brett, 23, and the 21-year-old twins Matt and Justin. Which, as CBS News Correspondent Cynthia Bowers reports, it all adds up to one very worried mom.
How hard is it for Connie Scherzberg to let go of the four of them together?
She says, "It's the most difficult thing I've ever gone through in my life."
Connie thought her personal war was over when her three youngest made it home safely from Iraq last December. And so did they -- until these Army Reservists got the call again.
Says Spec. Brett Scherzberg, "It was (like) getting back to reality, kind of a slap in the face."
Especially for Jeff, who'd been out for two-and-a-half years, but not before talking his kid brothers into signing up.
Says Jeff, "I went eight years without ever being deployed. And they had been in the military for about three years and were getting ready to go on their second deployment. I kind of felt like I owed it to them to go back in and get deployed with them.
That same sentiment led to a terrible loss for another family during World War II, when the five Sullivan brothers from Iowa all died when their ship sank. Military brass changed the policy to try to make sure that wouldn't happen again, but the Scherzbergs insisted; for them, there is strength in numbers.
Says Connie, "During tough times you need someone there who loves you, and they love each other."
There were tough times last year, when an RPG hit a truck in Justin's convoy.
Says Justin, "When something like that happens, it reminds you of how close you are to danger and you just appreciate everyday after that."
Matt adds, "We watch out for each other. This is what we do. So I'm a 100 percent sure we can take care of each other and get the job done."
And get back home the way they left: together.
By Cynthia Bowers