The Huns were<em> nomads</em> who lived in Central Asia, Caucasus and Eastern Europe,<em> they contributed to the fall of the Western Roman Empire because they started the</em> Mass Migration.
The mass migration was a main factor on the Western Roman Empire because<em> it weakened the Roman Empire's cultural, economic and military development</em>, leaving them exposed for other countries to attack.
The Hun invasion<u> </u><u>caused a massive migration</u>, they moved <em>The Goths</em> from their homes causing <em><u>the Goth invasion of the Roman Empire</u></em>. This is known as the <em>Domino Effect</em> in the fall of the Western Roman Empire.
One result<span> of the </span>war<span> was the division of Germany into many territories — all of which, despite their membership in the Empire, won de facto sovereignty. This limited the power of the Holy Roman Empire and decentralized German power. The</span>Thirty Years<span>' </span>War<span> rearranged the European power structure.</span>
Manifest destiny was the reason the US claimed Oregon country.
