CLOVIS , California ( CNN ) -- Jeff Hubbard fought back tears as he talked about his boy -- a `` great , great young man '' who was killed last week in Iraq in a helicopter crash . It 's the second time he 's had to bury a son killed in the Iraq war . Jeff and Peggy Hubbard with sons Army Spc . Jason Hubbard , left , and Cpl . Nathan Hubbard . This time , it was made even more tragic . His third son , also a soldier in Iraq , was immediately on the scene of last week 's helicopter crash and watched as soldiers carried the remains of his brother , 21-year-old Army Cpl . Nathan Hubbard , from the crash site . Nathan 's flag-draped coffin arrived in Fresno earlier this week and eventually to his hometown of Clovis . Watch `` We love you Nate '' » . Hundreds of mourners gathered Friday to remember Nathan at St. Anthony of Padua , the same church where his oldest brother 's funeral was held in 2004 . Nathan will be laid to rest at Clovis Cemetery , beside his brother , Jared . Nathan and his other brother entered the military shortly after Jared was killed -- to honor his sacrifice . `` Their decision to join the military was motivated by a love for their brother and a desire to serve their country , '' the priest told mourners Friday . `` The death of Jared touched him deeply . Losing a brother and a friend made a profound impact on him , and brought to his attention the seasons of war and grief and loss . '' Jeff Hubbard spoke to reporters Thursday ahead of the funeral , struggling to find words to describe how much his youngest son meant to him and his family . `` I want everybody to remember and celebrate Nate in their own way , the way they want , '' he said . `` We want him honored , remembered and celebrated -- he was a great , great young man . Wonderful young man . '' Tragically , the Hubbards have gone through this anguish before . In 2004 their son , Marine Lance Cpl . Jared Hubbard , was on patrol in Iraq with his best friend and fellow Marine , Jeremiah Baro -- also from Clovis -- when a roadside bomb exploded , killing both . Jeff Hubbard says there 's no way for a parent to prepare for the agony a second time . `` They 're each absolutely individual terrible instances that you deal with the best you can as you go forward , '' he said . Six months after Jared was killed , Nathan and Jason Hubbard decided to enlist and serve together -- to follow in their brother 's footsteps . On August 22 after returning from a scouting mission south of Kirkuk , Iraq , the Blackhawk helicopter carrying Nathan and 13 other soldiers crashed . Jason , who served in the same Army platoon , was in a separate helicopter when his brother went down and was ordered to secure the crash site . When he and his men reached the downed Blackhawk , Jason says he realized it was his brother 's unit . `` We also had to remove as many of the men as we could out of that helicopter , '' Jason remembered . `` And I could n't participate in that . I knew my -- I knew Nathan was in there . I tried several times to kind of gather myself , but I just -- I could n't . '' Jason says as the men carried bodies out of the wreckage , he spotted his younger brother . `` At one point they did carry Nathan by me . And that 's when the reality , the complete reality , and complete understanding of the situation came to me and I began dealing with it . '' Under the Department of Defense sole survivor policy , Jason says he was told he will not be allowed to return to war . His wife and young son will join him at his base in Hawaii . E-mail to a friend .
NEW : Funeral held Friday for Army Cpl . Nathan Hubbard . Marine Lance Cpl . Jared Hubbard was killed by a roadside bomb in 2004 . The Associated Press contributed to this report. Nathan was killed August 22 ; Jason was ordered to return home for good .