he and his teammates weren't the only casualties in the battle. a chopper that had rushed to help latrell and his team was shot out of the sky killing everybody onboard in june 2005 this was the largest loss of war in naval warfare since 2002. admiral mark mcgwire told us no s.e.a.l. will ever forget that terrible day. >> was that the toughest day for you as a special force commander? >> yes. most people of my generation, they ask the question do you remember when kennedy was shot? i remember that as well. a much more moving day for me and one that's more defining is the 28th of june, 2005, when that helicopter was shot down and three of my men were killed on the ground. >> 19 men lost their lives. vice admiral joe mcguire was head of s.e.a.l. training at time. >> you would have to go back to world war ii to have had one day where we experienced that many casualties at one time. >> mcguire says the entire