Section War II? The years 1940 to 1945 will

1: Identification and Evaluation of sources

investigation will explore the question: To what extent does the United States
dropping two atomic bombs on Japan has an impact on ending the World War II?
The years 1940 to 1945 will be the focus of this investigation, to allow for an
analysis of the impact the two atomic bombs the United States dropped on Japan
have on ending the World War II.

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first source which will be evaluated in depth is United States’ Central
Intelligence Agency’s “The final months with Japan”. The origin of this source
is very reliable, since it is an official document produced by the United States
Central Intelligence Agency. Furthermore, the date of this documentary produced
was updated in 2003, this increases the source’s credibility, as it is more as
a fact based, rather than a one sided bias information. This piece of source is
valuable to my investigation on the impact of the two atomic bomb dropped on
Japan by the United States, led towards the end of World War II, because of its
credibility, and the fact based piece of source. This piece of source is
creditable because it is an official piece of document produced by the United
States’ Central Intelligence Agency.

mere purpose of this source created was to record the evidence of the ending
war in Japan during World War II. The source recorded in this source was
overviewed by the United Nations ensuring this piece of evidence’s credibility.
The source also allows the United States to tell its side of the story on why
they decided to drop the two atomic bombs on Japan, What where their thoughts
and why they thought that it will end the World War II. The source may be
published by the United States, however, the source is fact based, and contains
little to no bias comments and analyzation.

second source evaluated in depth is D.M. Giangreco’s report “Operation
Downfall: The Devil Was in the Details” written in 2005. A detail report on
operation Downfall. Operation Downfall is the codename for the operation the
United States armed forces used when they decided to bomb Japan with two atomic
bombs. This source is valuable to my investigation because of its depth
analyzation on the operation downfall. It also makes this source valuable because
of its in depth record on how the decision was made, and what other military
and diplomatic actions was made by the United States towards Japan during the
second World War, and before the United States dropped the two atomic bombs on
to Japan

purpose of D.M. Giangreco’s report “Operation Downfall: The Devil Was in the
Details” was to analyze the Operation Downfall. The source includes detail
information on the action the United States performed. The source also analysis
key points on decisions made by the United States. The Source also questions
some of the actions the United States performed during the operation downfall.


2: Investigation

historians would disagree that the United States dropping two atomic bombs on
to Japan had a huge impact on ending the second World War.

1945, in the morning of Japan 8:15 am, the United States had proceed towards
the final steps of Operation Downfall, leading towards the dropping of the
atomic bomb. An American B-29 bomber, the Enola Gay, had dropped the atomic
bomb on to the city of Hiroshima, leading towards 80,000 casualties due to the
blast of the atomic bomb, and 35,000 injured by the atomic bomb. Due to the
characteristics of the atomic bomb, at least 60,000 people would die in the
year due to the fallout of the atomic bomb. The damaged caused by the atomic
bomb to Japan was deeply catastrophic. Before the atomic bomb detonated 1900
feet above, there were 90,000 buildings, 200 doctors and 1780 nurses. After the
atomic bomb detonated, there were only 28,000 buildings left, 20 doctors left
alive and capable of working, and only 150 nurses were left. The atomic bomb
that was dropped on Hiroshima was so catastrophic, it wiped out the whole
city’s economic, military and even the medical care capability of the city.
This strikes a fear throughout Japan and all the rest of the Axis countries. On
the other side, the atomic bomb detonated made the United States and the rest
of the alliance strengthened, and gave them hope. The atomic bomb also shows the
world the military capability of the United States. This gave the United States
position as the leader, and stroked fear towards the enemies of the United

August 9th 1945, the second atomic bomb was dropped on Japan’s city
Nagasaki. The atomic bomb dropped by the United States armed forces was carried
on a B-29 bomber called the “Bock’s car”. The atomic bomb detonated in Nagasaki
caused a total casualty up to 80,000, Killing more civilians than the first
atomic bomb the United States dropped on Japan. More importantly, Nagasaki was
a shipbuilding factory for Japan’s navy. As Japan geographic location was
surrounded by the ocean, Japan’s military force highly depends on their navy
power. As the United States used an atomic bomb bombing Nagasaki, it wiped out
Japan’s military force as it annihilates Japan navy force’s capability on
building and producing more battleships for the navy to use. This strategic
location used for bombing by the United States was a great success towards
ending the war. Since for starters, the atomic bomb is the largest bomb ever
detonated up to that point in history. Secondly since the Japan empire heavily
relies on their navy because of their geographical location, the attack on
Nagasaki crippled the Japanese navy, greatly reducing their capacity on
engaging future warfare, resulting in endling the second world war.

after the two atomic bomb detonated in Japan, the empire was in fact not
prepared to surrender. After the bombing in Nagasaki and Russia declaring war
on Japan, the Japanese government was still unsure about the decision on
surrendering. The Japanese Supreme Council for the Direction of the War, the
“big six”, had a voting for peace or for continue the world war. By the time
the council voted three against three, having an even vote. On the same night,
the imperial conference was held in Tokyo, announcing that the emperor
indicated that he wish to stop the fighting and the war, thus accepting to

to the United States Central Intelligence Agency report on operation downfall,
the Japanese government had crippled due to the fact of the two atomic bomb set
off, wiping a huge chunk of Japan’s population, and also wiping out Japan’s
military force.

surrender of the Japanese government, supports the claim that the United States
dropping two atomic bombs onto Japan led towards the end of the second World
War. To investigate, first Japan was the last country in the Axis to surrender.
After the Nazis has surrendered to the United States, most of the country in
the Axis alliance has surrendered accordingly, leaving Japan alone. At first
Japan was still hard to deal with, since Japan has a strong navy. However,
after the surprise attack Japan held in the Peral harbor on the United States
causing more than 2,400 American casualties made the United States more
dedicated to end the second world war by eliminating Japan. Secondly, due to
the geographic location of Japan, Japanese military force heavily relies on its
navy for both offensive and defensive military acts. The atomic bomb dropped in
Nagasaki destroyed Japan’s most valuable ship producing factory, thus crippling
its military force, not allowing Japanese force to grow any bigger. Third, the
two atomic bombs dropped on Japan by the United States had more than 100,000
civilian casualties, as Japan started off as a small country, the high casualty
count will deeply crash Japan’s productivity, and it will not be acceptable for
such high death count. Since Japan lost the capability on rebuilding a strong
navy force, and facing a high casualty rate, the emperor was forced to
surrender, and accept the conditions the United States set for Japan.

to the report “Operation Downfall: The devil is within the details” historians
analyzed that Japan was fighting the war by his own at that point. Without
allies, and with both the United States and the Russian declaring war on Japan,
and after the two atomic bombs the United States dropped on Japan, Japan had no
chance but to surrender. The threat of the atomic bombs and the strong military
force of the United States scares the Japanese military force, forcing the
government to agree with the treaty’s harsh term and announcing its surrender.

therefore seems that the United States dropping two atomic bombs on Japan, had
an great extent on ending the second world war, by first crippling the Japanese
navy, and having high casualties within Japan. The surrender of Japan means the
end of the second world war, since Japan was the only Axis country who still
stands, without surrendering.


3: Reflection

investigation has allowed me to gain an insight into some of the methods used
by historians, also challenges historians faces when writing their report,
especially on such sensitive matters. I feel that I have developed the skills
that is fundamental in the study of history, to carefully analyze historical
sources, to find and evaluate the origin of the sources, to evaluate the
credibility of the writer of the source, and to analysis the source if there
are any bias in the source, and to compare information from different sources.
I read books by historians on the subject, analyzed statistical evidence, read
official government reports concerning the subject of this study, all of which
are methods often used by historians.

comparing evidences, provided by the different types of sources, regarding my
research question, I also became more aware of the challenges historians faces
while analyzing the sources. While comparing sources, and checking for its
credibility and making sure is the source bias in some ways. It was hard to
extinguish on whether a source is bias or not, since the way of us knowing what
happened during that time period was through reading historians’ books and reports
on the incident. However, we cannot identify which book is bias or not, since
most of the books that were published according to the subject, was for the
United States. A quote by Dan Brown, The Da Vinci Code wrote “History is always
written by the winners. When two cultures clash, the loser is obliterated, and
the winner writes the history books – books which glorify their own cause and
disparage the conquered foe. As Napoleon once said, ‘What is history, but a
fable agreed upon?'”. Since the United States and its allies won the second
world war, most historians origins from the United States, and wrote about only
what the United States did to stop the second world war, but not writing about
the positive side of Japan. Thus, most of the historian books we get nowadays
are bias, and one sided, only writing for the United States. The second issue I
faces, was that even though I found some documentary from the Japanese
government, indicating and detailing what happened during the second world war
on their perspective, the language written was in Japanese, thus makes it
unreadable for us.

in all, this investigation has provided me a chance on learning to importance
on analyzing the sources reliability before making an opinion on an incident
that has occurred. Thus, giving me an valuable insight on the matter on answering
the investigation question “To what extent does the United States dropping two
atomic bombs on Japan has an impact on ending the World War II?”