Which situation was a major result of World War I (1914-1918)? O The League of Nations was able to maintain peace in Europe for a half-century
O European nations quickly became self-sufficient and regained economic prosperity
The Soviet Union and the United States cooperate economically and militarily.
O The Treaty of Versailles contained provisions that contributed to the political and economic problems of Europe.

The Treaty of Versailles contained provisions that contributed to the political and economic problems of Europe.

Explanation:

the emancipation proclamation was the aim of the war change to include the freeing of slaves in addition to preserving the union. the 13th amendment, which abolished slavery in the u.s. was passed on december 6th 1865.

as promised, lincoln waited to unveil the proclamation until he could do so with success from the union military advance. on september 22nd 1862, after a victory at antietam, he publicly announced a preliminary emancipation proclamation, declaring all slaves free in the rebellious states as of january 1st 1863.