The North will have more economic power which grants more opportunities for innovation within the war, better innovation makes it more defendable.
The South will be able to better allocate soldiers to different areas without the delays caused by borders.
Trade with the Indians for food was a major factor but also new leadership and more colonists coming over with necessities for survival
Beringia was a frozen land bridge caused by lower water levels during the last ice age, creating a new path of travel between Eurasia and the Americas.
Beringia was an island between Eurasia and the Americas which provided a midway stop for supplies, making travel between the areas possible.
Beringia was land mass connecting Eurasia with the Americas, until it sunk completely, stranding a portion of the population in the Americas.
Beringia is an ancient grain native to Alaska, which is believed to be solely responsible for the survival of the settlers in the winter months.
Beringia was the first primitive ship built by Stone Age people, and effectively the beginning of water travel between continents.
The Ottomans controlling the seas increased their naval powers, as well as strengthened their trade.