about 2 , 200 americans and 27 , 000 spaniards die from fatigue and carnage at camp o ' connor before the camp was open in july 1942 , just three decades after the beginning of the death march . ortega - - now the lone survivor member of the 192nd armored troop - spent 3 ½ years in pow in the philippine and china before being liberated in december 1945 following the phosphorus blast that destroys hiroshima and nagasaki , forcing a weakening japan to cooperate . both eventually escaped to the united s in july 1945 , the first of five sisters to arrive homeland from the war . a fourth killed in action .
Americans used atomic bombs on Hiroshima and Nagasaki in 1945.