The "zoot- suit" riots took place in Los Angeles.
They have been having major wars since 1540 - 1924.
But just to name a few:
American Revolution (1775–1783)
Cherokee–American wars (1776–1794)
Northwest Indian War (1785–1795)
Nickajack Expedition (1794)
Sabine Expedition (1806)
War of 1812 (1811–1815) Tecumseh's War (1811–1813) ...
First Seminole War (1817–1818)
Winnebago War (1827)
One of the main ways in which the technological innovations in textile mills affected the practice of slavery was that as these mills became more efficient, the demand for cotton increased--this in turn increased the demand for slaves in the South.
Political parties are elected by the people who represent the citizens of a country. The political parties that have power determine and shape the public policies. The question is which party, and that depends on the party that has won the elections or the ruling party in power. If a bill has to be passed, the majority of votes are required to pass the bill or to implement or execute the policy. Public policies are framed based on certain norms which, are adhered to. The norms are complied with by the parties to make sure that the public policies are in accordance with the public opinion. Political parties and elected authorities indeed represent and shape public policies that can be compared to a family and head of the family making decisions for the family.