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Chapter 12: America and World War II, 1941-1945 - Georgia ...

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equipment. Automobile factories began to produce<br />

trucks, jeeps, <strong>and</strong> tanks. This was critical in modern<br />

warfare because the country that could move troops<br />

<strong>and</strong> supplies most quickly usually won the battle. As<br />

General George C. Marshall, chief of staff for the<br />

United States Army, observed:<br />

The greatest advantage the United States enjoyed<br />

“<br />

on the ground in the fighting was . . . the jeep <strong>and</strong> the<br />

two-<strong>and</strong>-a-half ton truck. These are the instruments<br />

that moved <strong>and</strong> supplied United States troops in battle,<br />

while the German army . . . depended on animal<br />

transport. . . . The United States, profiting from the<br />

mass production achievements of its automotive<br />

industry . . . had mobility that completely outclassed<br />

the enemy.<br />

”<br />

—quoted in Miracle of <strong>World</strong> <strong>War</strong> <strong>II</strong><br />

Automobile factories did not just produce vehicles.<br />

They also built artillery, rifles, mines, helmets,<br />

pontoon bridges, cooking pots, <strong>and</strong> dozens of other<br />

pieces of military equipment. Henry Ford launched<br />

Tanks Produced (in thous<strong>and</strong>s)<br />

30<br />

25<br />

20<br />

15<br />

10<br />

5<br />

4,203<br />

Tank Production, <strong>1941</strong>–<strong>1945</strong><br />

23,884<br />

29,497<br />

17,565<br />

11,184<br />

<strong>1941</strong> 1942 1943 1944 <strong>1945</strong><br />

Year<br />

Source: Historical Statistics of the United States: Colonial Times to 1970.<br />

1. Interpreting Graphs How does the number of<br />

tanks produced relate to the number of automobiles<br />

produced in the previous graph?<br />

2. Making Generalizations How do these two<br />

graphs illustrate the commitment of the United<br />

States to winning the war?<br />

one of the most ambitious projects when he created<br />

an assembly line for the enormous B-24 bomber<br />

known as “the Liberator” at Willow Run Airport near<br />

Detroit. By the end of the war, the factory had built<br />

over 8,600 aircraft. Overall, the automobile industry<br />

produced nearly one-third of the military equipment<br />

manufactured during the war.<br />

Building the Liberty Ships Henry Kaiser’s shipyards<br />

more than matched Ford’s achievement in aircraft<br />

production. Kaiser’s shipyards built many<br />

ships, but they were best known for their production<br />

of Liberty ships. The Liberty ship was the basic<br />

cargo ship used during the war. Most Liberty ships<br />

were welded instead of riveted. Welded ships were<br />

cheap, easy to build, <strong>and</strong> very hard to sink compared<br />

to riveted ships.<br />

When a riveted ship was hit, the rivets often came<br />

loose, causing the ship to fall apart <strong>and</strong> sink. A welded<br />

ship’s hull was fused into one solid piece of steel. A torpedo<br />

might blow a hole in it, but the hull would not<br />

come apart. A damaged Liberty ship could often get<br />

back to port, make repairs, <strong>and</strong> return to service.<br />

Welded ships saved cargo as well as lives.<br />

The <strong>War</strong> Production Board As <strong>America</strong>n<br />

companies converted to wartime production,<br />

many business leaders became frustrated<br />

with the mobilization process. Government<br />

agencies argued constantly about supplies<br />

<strong>and</strong> contracts <strong>and</strong> whose orders had the<br />

highest priority. The process was not only<br />

frustrating, but the disorder also hindered<br />

production.<br />

After Pearl Harbor, President Roosevelt<br />

tried to improve the system by creating the<br />

<strong>War</strong> Production Board (WPB) in January 1942.<br />

The chairman, Donald M. Nelson, <strong>and</strong> the<br />

WPB received authority to set priorities <strong>and</strong><br />

production goals <strong>and</strong> to control the distribution<br />

of raw materials <strong>and</strong> supplies. Almost<br />

immediately, the WPB clashed with the military.<br />

Military agencies continued to sign contracts<br />

without consulting with the WPB. Over<br />

a period of three years, the WPB supervised<br />

the production of $185 billion in military<br />

weapons <strong>and</strong> supplies. Finally, in 1943,<br />

Roosevelt established the Office of <strong>War</strong><br />

Mobilization (OWM) to settle arguments<br />

between the different agencies.<br />

Reading Check Explaining What military<br />

need led to the production of Liberty ships?<br />

CHAPTER <strong>12</strong> <strong>America</strong> <strong>and</strong> <strong>World</strong> <strong>War</strong> <strong>II</strong> 575

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