Well... the Cumberland Gap was the only easy way for settlers to travel. It was very hard for colonists to go through mountains. The Indian Americans were the ones who discovered it.
Answer:
General McClellan’s most grievous error was hugely overestimating Confederate numbers. This delusion dominated his military character. In August 1861, taking command of the Army of the Potomac, he began entirely on his own to over-count the enemy’s forces. Later he was abetted by Allan Pinkerton, his inept intelligence chief, but even Pinkerton could not keep pace with McClellan’s imagination. On the eve of Antietam, McClellan would tell Washington he faced a gigantic Rebel army “amounting to not less than 120,000 men,” outnumbering his own army “by at least twenty-five per cent.”
Explanation:
To make laws for the goverment
The axis powers (Germany, Italy, & Japan), were fighting against the allies (UK, USA, China, France, Canada & Russia). Also they're more countries but those were the main ones.
Freedom of religion in 1812 is one of them