Editor's note: Arthur Bloom has been named a 2014 Top 10 CNN Hero. Voting for CNN Hero of the Year continues through Sunday, Nov. 16). All of this year's Top 10 CNN Heroes will be honored during CNN Heroes: An All-Star Tribute" -- Sunday, December 7 (8pm ET) on the global networks on CNN.
Bethesda, Maryland (CNN) -- When Capt. Greg Galeazzi joined the Army seven years ago, he was well aware of the risks he would face.