Answer:
Invasions by Barbarian tribes
Explanation:
The most straightforward theory for Western Rome's collapse pins the fall on a string of military losses sustained against outside forces. Rome had tangled with Germanic tribes for centuries, but by the 300s “barbarian” groups like the Goths had encroached beyond the Empire's borders.
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If you are talking about the Revolutionary War, then the British were already an established independent government.
I believe the answer would be: C. Custer and his force arrived ahead of the main U.S. force.
There are numerous mountains in Japan and they were an obstacle towards unifying the country. Since many parts of Japan waged wars against others, it was difficult to fight in other people's regions since they had the mountains to their advantage so there was a difficulty in uniting every part of Japan through wars, like it was done in numerous other countries.
Slavery caused a break in the democratic party.