Solutions American president who ordered use of atomic bomb has 4 entries with similar clues

• 6-letter words
• fatmanwhat was the codename for the atomic bomb dropped on nagasaki?
• 8-letter words
• nagasakiJapanese city, target for the second atomic bomb attack
• 9-letter words
• hiroshimaFirst Japanese city to be hit by atomic bomb
• 10-letter words
• los-alamosThe site where first atomic and hydrogen bombs were developed in the United States