The War with Mexico
Fought to fulfill the Manifest Destiny.
South: wanted TX
2. spread slavery
North: did not want TX
1. disrupt balance in Congress
2. spread of slavery
Allowing TX into the Union
The Constitution does not state if
another nation can be annexed into
1845 TX put the issue to voters –
wanted to become American.
Tensions between U.S. and MX
MX thought this was an act of war.
James K. Polk –
1. wanted CA, NM, AZ
2. boundary between U.S. and MX
Rio Grande (US) Neuces (MX)
U.S. claimed that MX owed U.S.
money – 3 million.
Polk sent John Slidell
1. cancel the 3 million dollars
2. pay 30 million for NM and CA
Mexican – American War
Gen. Zachary Taylor to move troops
between the Nueces and the Rio.
May 13, 1846 U.S. declared war.
Gen. Stephen Kearney –
1. easily took NM
2. marched to CA.
Bear Flag Revolt
Forced a MX leader to sign a treaty to
give CA to America.
June 14, 1846 – CA was independent
and called the Republic of CA.
Final Stages of War
Gen. Taylor – advanced to Northern
part of MX.
Gen Winfield Scott – Gulf of Mexico
and marched to MX City.
MX gov was forced to give into
Results of War.
Signed in 1848 – Treaty of Guadalupe
Mexican Cession – largest land gain of the
1853 – Gadsen Purchase – final phase of
the Manifest Destiny.
President Polk – took a hit, unpopular war
with citizens of the U.S.
1. America Paid 15 million to MX.
2. unjust war