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US history
Course: US history > Unit 10
Lesson 1: United States history overview- Why study US history, government, and civics?
- US History Overview 1: Jamestown to the Civil War
- US History overview 2: Reconstruction to the Great Depression
- US History overview 3: WWII to Vietnam
- Appomattox and Lincoln's assassination
- When Capitalism is great and not-so-great
- 20th century US capitalism and regulation
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US History overview 3: WWII to Vietnam
The video explores key events of the 20th century, starting with the Bolshevik Revolution in 1917, leading to the formation of the Soviet Union. It discusses the rise of Hitler, World War II, the Cold War, and the space race. The video also covers the Korean War, the Cuban Missile Crisis, and the Vietnam War. Created by Sal Khan.
Want to join the conversation?
- Do u think it was right for us to drop a nuclear bomb on Japan?
They bombed us first but we bombed them twice.
I think the second time was too much.(8 votes)- It was a judgement call. We could have defeated japan without the use of the bomb. The price would have been many American lives. The result of dropping the bomb was many more Japanese lives. The bomb also served the purpose of a demonstration of power.
My personal opinion is that to use such knowledge and ingenuity as a means of mass destruction is a failure on the part of man kind. Perhaps that's wasn't as clear then, but I think it is should be a priority to ensure that act will never happen again. Imagine what we could accomplish if we directed our efforts technologies to improve the lives humans in general and not on warfare.(17 votes)
- At, there is John F. Kennedy's assassination. Who assassinated him? 10:45(13 votes)
- and then someone, I think ruby someone killed Oswald. I mean we could go into the conspiracy theories here of how a group decided to leave no loose ends and decided to kill the assassin of JFK and such other theories, but that is not important right now.(5 votes)
- () It seems that people justify the nuclear bombing of civilians in Hiroshima and Nagasaki in the fashion: "The atomic bomb did save lives as Hiroshima is 70,000 casualties and Nagasaki was 40,000 casualties. Together, 110,000 is less than 1,000,000. If the invasion of Japan were to take place, then there would be at least 1,000,000 casualties." to quote -ryan725. What I don't understand is: Why invade if you are worrying about lives? We had the Japanese surrounded and besieged. Doesn't common sense dictate, that if you can starve the enemy into surrender than there is no need to waste lives (OR MONEY!) invading? What was the rush to end the war? 5:30(13 votes)
- Just to start out the Japanese were clearly not willing to surrender or even make concessions on the gains they had achieved during their conquest in East Asia, and if the U.S. was forced to leave the region there was no way to assure that Japan would not retake all of the ground gained by the Americans. The autocratic regime there was very good at keeping their populace in the mood to fight on, (they had women training in schoolyards with bamboo sticks toward the end of the war) while the western belligerents had major problems with weariness and even defeatism (many American citizens openly questioned if the war was winnable or even justifiable, and a major political faction in the U.S. was still against going to war in the first place). So the idea that japan had lost the war entirely (although they certainly lost much of what they had gained through their imperial endeavors) is not necessarily accurate.
The main reason reason behind deciding to use atomic weapons was that the quickly growing rift between the U.S.S.R. and the U.S. was expanding from day to day, and both were vying for power in the region. Stalin had just recently entered the war against japan (as it had always promised it would exactly 90 days after the European theater had been closed) and swept through Manchuria. The American leadership was starting to mistrust the U.S.S.R and realized that they needed to assure that japan would never be able to return to war against the U.S., and furthermore that it did not fall under soviet control.
I should add as a footnote that I do not necessarily agree with the use of atomic weapons. I am just trying to understand why these things happen and what the people who made them so were thinking.(16 votes)
- How come Hitler promoted people with blond hair and blue eyes when he didn't even have that?(14 votes)
- The hair color was not important for promotion, in fact almost all field marshals of Nazi Germany had dark hair. I have often read that Hitler had a Jewish grandparent, but I have not found any evidence for this, so I think it is just a rumor started to make an ironic story.
The rules that the Nazi regime used to distinguish between Jews and non-Jews were formalized in the Nuremberg laws, and it stated that a person with a single Jewish grandparent was not considered a Jew but a German so even if had a Jewish grandparent he would not be considered a Jew.(8 votes)
- Why did Lee Harvey Oswald assassinate JFK?(4 votes)
- Many believe Oswald was under Russian influence. His wife was Russian, and it was reported the he had a house in Moscow.
But with so many conspiracy theories who can tell.(9 votes)
- I Didn't understood What is the bay of pigs? and what is the cold war mainly about?(6 votes)
- The Bay of Pigs Invasion was an attempt by JFK to overthrow Fidel Castro from Cuban rule and to get rid of the nuclear weapons that the Soviets put on Cuba. It was a complete failure, however.(6 votes)
- where did hitler die do we know where he did(1 vote)
- no he commited suicide in his secret bunker and he also commited suicide with his wife(7 votes)
- what did going to the moon do for the U.S? (in other words why did we go to the moon?)(3 votes)
- The main reason we went to the moon was the fact the Soviet Union was trying to get there and America wanted to get there first. Scientists also strongly supported the moon landing because the unprecedented amount discovery it made possible. Another factor was that JFK had promised to land a man on the moon and after he died that became a sacred creed that must be done. Lastly there was a lot of national pride involved in the space program, showing the might and power of America.(2 votes)
- What does totalitarian mean?(2 votes)
- Totalitarianism comes from the root word "total". It means the government seeks to control all aspects of society, from hospitals to television. Any society that exerts that amount of control over their people is totalitarian, whether they identify as Communist, Fascist, Integralist, Falangist, Socialist, Capitalist, whatever.(9 votes)
- Where did the word D-Day come from?(7 votes)
- It was simply code in planing the invasion (ie. the invasion will happen on D-Day at H-Hour)(2 votes)
Video transcript
We finished off the
last video entering into the Great Depression. It wasn't just a
depression for the US. It was a depression
for the world. But I want to back
up a little bit, because I forgot to mention
a very important fact that's hugely important to
the rest of US history into the 20th century. And that's what happened in
1917, actually during World War I. And that's the
Bolshevik Revolution. The Russian empire was
overthrown by the Bolsheviks. And it became the Soviet
Union, which you probably know was a communist state, and
it became the United States archenemy over the
rest of-- well, not over the rest of--
but near the, I guess, the second half of
the 20th century. So with that out
of the way, I just want to make sure you know that
Russia is now the Soviet Union. Let's fast forward back
through the Great Depression, and probably the
one point when we're doing this very high-level
overview that's of interest. And as you can see, even
though the focus of this series of videos is on US
interest, what's happening in the
rest of the world is starting to become much more
important, because the US is starting to become this
really serious global actor. And so in 1933-- so this
is right in the middle of this global depression,
and Germany was especially hit hard because of all the
damage done by World War I and the war reparations
and all the rest. You have Hitler coming to
power as chancellor of Germany. And it's interesting to
note that it was actually-- he came to power in
a democratic process. Chancellor of Germany is
analogous to prime minister of other countries,
and so essentially he was ruling a coalition. The Nazis, his party, did
not have the majority. But they were able to
control this coalition. Although it was a very weak one. But what they were good at
is intimidating and rigging elections and all the rest. And so over the course
of the rest of the '30s, essentially the Nazis
consolidated power until we get to 1939. And the rest of the world
would kind of watch Hitler. He was consolidating power. He came in democratically,
but he was essentially consolidating power
under himself, turning it into a dictatorship. He was militarizing Germany. People started to get
concerned, but they all had the doctrine of appeasement. Hey, you know, let's just
not make him too angry and maybe he won't
start anything too bad. But in 1939, Germany
invades Poland. And this is kind of
viewed as the one event that kind of-- the straw
that breaks the camel's back, so to speak. And so it begins World War II. So this is the beginning
of World War II. And initially it's
between-- I guess if you think about the great
powers that initially get involved, it is the British
Empire and the Soviet Union. France is involved. It quickly gets
overrun by the Nazis. And what happens
is that the US-- it wasn't like the situation
with World War I where the US was
trying to stay neutral. The US had recognized,
especially FDR, Franklin Delano Roosevelt, he had recognized
that Hitler was an aggressor, that he was, from FDR's point
of view, definitely in the wrong here. So even from the
beginning of World War II, the US did help
support the Allies. So it would send arms and
any other type of assistance. When Japan and Italy joined
on the side of Germany, the US embargoed oil to Japan. The US was an exporter
of oil to Japan. And you could
imagine Japan did not produce a lot of its own oil,
and oil is super important when you're trying
to run a war machine. So that didn't make
Japan too happy. So you fast forward to 1941,
and you have Japan bombing Pearl Harbor. So until this point, US kind
of played a non-direct role. It definitely
supported the Allies. It did what it
could economically and by providing military
aid, but it did not actively participate in the fighting. But then December 7,
1941, the Japanese bombed the US Pacific
fleet at Pearl Harbor. And that's a whole
interesting debate because, or discussion,
it was lucky for the US that a lot of the Pacific
fleet was not there. But it was obviously this thing
that convinced the US public that World War II
was worth joining. So in 1941, because of Pearl
Harbor, the US enters the war. And it enters the
war in both arenas, both in Europe and
in the Pacific. And then you fast forward. It goes against the
Italians in North Africa. And then you fast forward
to 1944, it actually enters into the fight
in mainland Europe. This is the invasion
of Normandy. This is D-Day. June 6, 1944. If you have ever seen
"Saving Private Ryan," it starts with this. I've never stormed
a beach, but I could imagine that's probably
the most realistic reenactment of what it was like to
storm the beach at Normandy. But you fast forward to 1945. And eventually, especially
between the Soviet and the US, or I should say all
the Allied forces, they're able to, I guess, win
the European front of World War II. And then you fast forward
to the end of that year. Japan was still kind of
fighting pretty ferociously. And so the US-- and
this is once again-- I could make many
videos of this. We can debate the ethical
implications of this. But the US develops
the atomic bomb, ignites one over Hiroshima
and then a few days later one over Nagasaki. And that essentially
ends World War II. And so the outcome
of World War II is you have two
remaining superpowers. You have the Soviet Union, and
you have the United States. And what happens after that
is that you have the Cold War. These two huge powers,
the Soviet Union is this communist country. It's obviously trying to
create this communist sphere of influence. A lot of Eastern Europe was
falling under Soviet sway. The United States, not
a communist country, a very capitalist
country, you can imagine. And this is something
that gets confused a lot. The Soviet Union was communist,
and it was totalitarian. Communism and Democracy
aren't necessarily things that go against each other. But the Soviet Union had
neither a capitalist system, nor democracy. It was both communist
and totalitarian. And when I say
communist, I'm talking about no private wealth. The state really
owned all resources. The United States, on the other
hand, was hugely capitalist. And you could imagine many
people in the United States did not want any of
this communism business to come to us. So you have this major battle
that never really erupts into direct conflict between
the Soviet Union and the United States. It's always done
through proxies, through people who the United
States or the Soviet Union is acting on the behalf--
or who are acting on behalf of the United States
or Soviet Union. But you have the
Cold War beginning. And it's called the Cold War
because it wasn't a hot war. The United States
and the Soviet Union never really fired
bullets at each other. Instead, they
supported other parties that would fire bullets
at the Soviet Union. Or the Soviet Union would
support other parties that would fire bullets
at the United States. And for the United
States, it was all about stopping communism. It was all about preventing
this domino theory that if one country in a
region would fall to communism, that other countries would. So the United States
became a bit paranoid, or maybe it was justified. Either way, it
was very concerned about the spread of communism. And the first time that this
really gets tested-- and 1950 is an interesting year, because
this is the first time-- obviously, the US had
nuclear weapons as of 1945. But in 1950, the
Soviet Union tested its first nuclear weapon. So now the Cold War is
starting to get very serious. Both of these
adversaries can now nuke each other
if they wanted to. And also in 1950,
you have Korea. And Korea, before World
War II-- so that's a very small
depiction of Korea-- it was a Japanese colony. But obviously,
Japan had now lost. And so after World
War II, it was split between an area,
North Korea, which was influenced by the Russians,
and South Korea, which was influenced by
the United States. And it was split along
the 38th parallel, and I know this is a
super small diagram. We'll go into more
detail when we do detailed videos
about the Korean War. But in 1950, you have the North
Koreans invaded the South. So it started the Korean War. The US sent troops. The North Koreans had China on
their side, the Chinese army. The Soviets were
also supplying them. But at the end of
the day in 1953, you fast forward,
it ends up being a little bit of a stalemate,
because the end result was is that the original 38th
parallel border gets, I guess, reinstated. But that was the first real
conflict of the Cold War. And notice there were
never US or Russian-- or I shouldn't say Russian--
US or Soviet troops directly firing at each other. The US were at
war with the North Korean and the Chinese
troops, but they were kind of proxies
for the Soviet Union. And at the same time,
as you can imagine, because you have these
two adversaries, these two technically sophisticated
adversaries-- they both had
nuclear weapons-- it became very interesting on who
can kind of dominate space. So you have this kind of
space race developing in 1957. The Soviets are able to launch
the first artificial satellite around the earth. This is Sputnik One over here. Some people think
the first Sputnik is the one that
had the dog in it. No, that came a
few months later. That was Sputnik Two, actually. Had the picture of the dog here,
but the dog eventually dies. But it was alive for
a little bit in orbit. So that gets
everyone freaked out. The US responds. Then in 1961 you
have Yuri Gagarin. He's the first person in space,
first human being in space. He returns safely. We eventually get up there--
or the United States eventually gets up there as well. And you fast forward all
the way to 1969, the US is the first to be on the moon. So you have this space race. The two countries are really
trying to one up each other. And at the same time
that that's happening, you have-- and I bring this
up just because so much happened during his presidency. In 1960, you have
John F. Kennedy being elected kind of in
the heart of the Cold War. And the other
interesting thing is he was the first
Catholic president, which people questioned. That by itself was interesting. But what was really interesting
in his short presidency-- and I think you might know
that only had really-- he actually became
president in '61. This is an error. He was elected in '60, but
he became president in '61. He had a very short presidency. He was assassinated
in '63, but a lot happened in that
short presidency. In 1957, right before he became
president, you had-- oh, sorry. Not 1957. Let me get my years right. 1959 you had the
Cuban Revolution. Cuba became communist. Fidel Castro takes over. It becomes communist. So you could imagine,
the Americans didn't like a communist state
so close to our own borders. So in 1961 we support
some ex-Cubans, or some Cuban exiles,
to try to invade Cuba. And that also can be a whole
topic for another video. There's debates between the CIA
and the Kennedy administration for who was to blame for
it being such a failure, but it was a failure. So it was a huge embarrassment
to the United States. And from the
revolutionaries' point of view, the communist
revolutionaries' point of view, they kind of viewed this as
solidifying their hold of Cuba. It showed that
they could fend off a counter-revolutionary assault. And then you have in 1962. We have these spy planes. And we see that the
Soviets are starting to put these ballistic missiles
in Cuba, which really freaks the United States out, because
these ballistic missiles could reach any part of
the United States. We actually had similar ones
in parts of Europe and Turkey, but we don't like
these things here. So we essentially used
our Navy to, I would say, blockade any more arms
shipments to the Soviet Union. So Kennedy really has this kind
of stand-off with the Soviet Union during the Cuban
Missile Crisis in 1962. And most people
believe that this was the closest that the United
States and the Soviet Union ever got to actually
having a war, and which would have probably
turned into a nuclear war. But the stand-off
eventually got resolved. The Soviet Union agreed
to remove their missiles. Well, one, not send anymore
missiles and dismantle the ones that they had already set up. And this wasn't publicly
stated at the time, but the United
States also agreed to do the same thing
for our missiles that were pointed
at the Soviet Union, to remove those from Turkey. So the world, at least
at that point in time, had avoided a mutually
assured destruction. The whole time that
this is happening, remember, the United
States is paranoid. And maybe justifiably so. Paranoia usually means worried
when there's not a cause. But maybe justifiably worried
about the spread of communism. You have a situation
where, in Vietnam, you have a Vietnam, which
is right about-- let me make sure I circle the
right country-- you have in Vietnam the communists come
to power in North Vietnam. This was formally
a French colony. The US, right from
the get-go in 1950, start sending advisers to
aid the anti-communists in South Vietnam. In Kennedy's administration,
the amount of advisors-- and I should probably
put that in quotes, because these advisers started
becoming much more involved-- really grew. And until 1965,
the United States started sending it acts
actual official combat troops to fight in Vietnam. And you fast forward
that all the way to 1975. And the reason why
this is significant, other than this being one of
the more recent major wars the United States
has been in, it's the first war that the United
States kind of unambiguously lost. In 1975, the last presence
of the United States left. And essentially
Saigon, which was the capital of South Vietnam,
fell to the communists. So I'll leave you there,
and we're now essentially in modern history. At least from my point
of view, because I was born not too
long after that. Anyway, hopefully you
found that interesting. Let me, oh, I couldn't
find the stop button. There you go.