Mexican War
Calder Lloyd
Stephen Goldsman
Michele Scott
Migration
• Migration into western areas from US picked up in the 1830’s
and 1840’s
• They believed it was there Devine Mission
Annexation of Texas
• 1836, Texans won independence from Mexico
• Texans wanted to be annexed by the US
•
Annexed: joined in the union
Annexation of Texas: Northerners
vs. Southerners
• Southerners and Democrats
agreed on letting Texas join the
union
• More slave states for south
• Northerners and Whigs didn’t
want the annexation
• Made south more powerful
• Both , though feared a war
with Mexico
Annexation of Texas: John Tyler &
James Polk
John Tyler drew up a treaty of annexation
Didn’t pass because of the Whig majority
in the senate
• James Polk stated that the
Americans should have
more land/territory and
that majority of Americans
wanted more land
•
annexation was
passed
• Month later Mexico broke
off relations with U.S.
War with Mexico
• March 1845 Mexico broke off diplomatic relations with
U.S.
• Mexico claimed the Nueces River
• President Polk and other Southern Democrats wanted
more than just Texas
Polk sent John Slidell to offer 30 million $ to buy New
Mexico and California
War with Mexico
• Polk sent 3,000 troops under
Zachary Taylor into Southern Texas
•Mexico viewed this as an
invasion and prepared for
action
•May 13th, 1846 the
Mexican War begins
Bear Flag Revolt
• The revolt was led by William B. Ide
• On June 14 settlers launched a surprise
attack on the town of Sonoma
The settler’s flag is a bear with a star on it
which is why the revolt is called the bear
flag revolt
• In July 1846, United States crossed into
New Mexico
Bear Flag Revolt
• In July 1846, United States crossed into New
Mexico
• After occupying Santa Fe, General Kearny
took part of his army and marched west to
California
• By January 1847 the United States had taken
control of New Mexico and California
Fighting in Mexico
• While crossing the Rio Grande, General Taylor won a series of victories,
leading to the Battle of
Buena Vista in February
1847
• Here he met Santa Anna,
who had an army of
20,000 Mexican troops
north from Mexico City
• Taylor’s army wan the
battle, which left hundreds
killed and wounded on
both sides
Fighting in Mexico
• In March 1847, Scott
captured the port city
Veracruz
• Then he marched his army
of 10,000 men toward
Mexico City
• After fierce fighting, Scott
defeated Santa Anna’s
forces and captured the
Mexican capital
Treaty of Guadelupe Hidalgo
• Signed Feb 2 1848
• Mexico gave up it’s claim to Texas and made
the Rio Grande the southern border of Texas.
• Mexico gave New Mexico + California
• more than 2/5 of it’s territory) to the U.S.
• The U.S. paid Mexico 15 million
• The U.S. agreed to pay claims made by American citizens against
Mexicans, which would amount to more than 3 million.
Gadsden Purchase
• Mexican government sold 30,000 square miles
of New Mexico and Arizona to America for $10
million
Discussion of Oregon
• Established the boundaries of America and
Mexico
The Effects of the Mexican War
• Shoved slavery into American politics
• The Civil War