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)
Answer:
Muslims started invading their lands and waging wars which obviously they were not okay with
Explanation:
I think that he looks very young in the sculptures because the way that they structure his body. The representation of Julius Caesar is striking like giving a stance to his goal.