At that point in 2004, his son was due home in late October, with plans to get married when Bush returned from Kyrgyzstan in January 2005.
"I felt good about his future and would sort of brag to people that I was deployed in Kyrgyzstan and that my son was in Iraq doing a great job," Bush said.
But on that September day nearly three years ago, it was 2:15 in the morning when Bushs captain came into his tent, shined a flashlight in his face and said they needed to talk outside.
"I got a terrible, sick feeling through my body. I stepped outside my tent, and standing there were the wing commander, group commander and my unit commander," Bush recalled. "I looked at them and said, No! Whats wrong?, and the wing commander said in a calm voice, Sergeant Bush, I regret to inform you that your son Adam Harris was killed in action on twenty-two September at approximately 12:05 p.m.
"At that point I fell down to my knees and cried my heart out," Bush wrote in his e-mail.
Consumed by his emotions, Bush, at the time a 24-year Air Force veteran, was carried to the command section of the base. Attempts were made to calm him.
"I remember praying with a Catholic priest. We were holding hands and praying. I couldnt stop thinking of my wife and how this was going to tear her to pieces," he said.
Denise Bush, a civilian secretary for the wing commander at the Dyess Air Force Base, was at work.
"When the Army people came to tell me . . . when they called me in, I didnt know if it was my husband or my son," she said by phone from her home in Abilene.
Steve Bush, who still has family in the Northeast Philadelphia area, had to be with his wife. Their Air Force family never left her alone until he got there.
"My home unit got hold of me and they put my wife on the phone and I could feel her pain as we talked and cried, comforting each other," Bush said. "Soon after, the Air Force got me back home within a day to be with my family and to lay our son to rest."
The military life is all Denise Bush has ever known. Her mother and father were Marines. Last Wednesday marked 15 years that she and Steve Bush have been married.
The Bushes have a blended family. Adam was 8 when the couple married, and Steve has two daughters from a previous marriage, Stephanie, 22, and Leslie, 20. The couples youngest son, Brandon, just turned 12.
Adams death has shaken Denises outlook.
"I dont think I ever worried deep in my heart that something would happen," she said. "You put a bubble around them. Unfortunately, that bubble has shattered."
In February, Bush told his wife that he was going to Iraq. For the first time in her life, the chance that something would happen was all she could think about.
At the time of his deployment, he could see in her eyes that she was scared and angry at the same time. She asked him not to go, to find a way out.
"I could have gotten out of the deployment but I didnt want to. I told her I just couldnt do that," Bush said. "I had to do this and let Adam know that Im going to take over where he left off. I felt that if I didnt deploy I was dishonoring what my son died for and believed in."
Bush left for training in May, on Mothers Day, to be exact.
The Air Force chief master sergeant is embedded with an Army unit about 60 miles north of Baghdad, at the Logistics Support Area Anaconda in Balad, Iraq.
"Its kind of ironic that Im serving my sons Army brethren, and that, in itself, is an honor," Bush said.
His duties include facilitating diplomatic, congressional and military visits to Balad and serving as the liaison to the U.S. Embassy and Multi-National Corps-Iraq.
Denise Bush keeps busy, working full time as a Department of Defense civilian, and gets through each day. The fact that her husband stays inside his base in Iraq makes her feel a little more at ease. She also gets to talk to him by telephone and e-mail.
"I say a lot of prayers," she said.
As for getting through each day, she noted, there really is no choice.
"You deal with it. You have to be a pretty independent person," she explained. "You do it to take care of your kids, take care of the house. You just do what you have to do. I cant let my other kids down."
But that doesnt make the couples loss any easier to cope with. Bush plans to retire from the military next year and bring his family back to Philadelphia.
"We will always think of Adam as a hero," Steve Bush said. "No one told him to enlist in the Army and go to Iraq. He did it willingly and with conviction. There isnt a day that goes by that we dont think of Adam and the 3,648 American heroes that gave their lives in order for others to be free. Our son served his country with honor, and now he serves the Lord."
If youd like to leave a message for the Bush family and honor the sacrifice of PFC Adam Harris, visit www.Adam-Harris.memory-of.com
Reporter Diane Prokop can be reached at 215-354-3036 or dprokop@phillynews.com