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The Pearl Harbor Bombing

  • North China Invasion

    Japan invades North China from Manchuria
  • U.S. Ceases Trade

    The U.s. imposes and ends trade sanctions, hoping to curb Japan's agression in Asia.
  • Possible Attack

    Adm. Yamamoto communicates with other Japanese military officers about a possible attack on Pearl Harbor.
  • Attack Warning

    Joseph C. Grew, U.S. ambassador to Japan, warns Washington about the surprise attack on Pearl Harbor. However, no one in Washington believes him.
  • Message Monitoring

    U.S. intellegence officers monitor Japanese secret messages.
  • The Code Cracked

    Japanese Adm. Nomura informs his superiors that the U.S. was reading and breaking the secret Japanese code. No one in Tokyo believes him and the code remains unchanged.
  • Attack Training

    Adm. Yamamoto trains his forces and finalizes the attack on Pearl Harbor.
  • Possible Negotiations

    Japan attempts to get the U.S. to agree to its expansion of Asia diplomatically. However, if unsuccessful, Japan is ready to go to war.
  • Submarine Departure

    Submarines depart from Japan to Hawaii.
  • Aircraft Departure

    Aircraft carriers and escorts begin the attack on Hawaii and leave Japan.
  • The Bombing

    The Japanese launch 350 planes and 6 aircraft carriers on Pearl Harbor. The attack lasts for 2 hours and 20 minutes.
  • War on Japan

    The U.S. Congress officialy declares war on Japan.