His did european nation form alliances in the early 1900s

To promote peace by creating powerful combinations that no one would attack.

A

Explanation:

the question is why did European nations form alliances in the early 1900s?

And the answer in edge 2021 is A- they were unsure they could protect themselves if attacked by larger nations.

lincoln presided over the union victory in the american civil war, which dominated his presidency. a former whig, lincoln ran on a political platform opposed to the expansion of slavery in the territories. his election served as the immediate impetus for the outbreak of the american civil war.

what class is this for i can then