Lincoln Issues the Emancipation Proclamation. One month later, after the capable Union victory in the Battle of Antietam, Lincoln issued a prior proclamation ominous that in all states still in rebellion on January one eighteen sixty-three, he would declare their slaves then, thenceforward, and forever free.
Answer: To promote life in the west.
Explanation: In 1842, as emigration to the Oregon country in the Pacific Northwest was growing dramatically in importance for the nation, the War Department sent Frémont on an expedition to survey the route west from the Mississippi River to the Wyoming region.
He was right a war in two fronts. Western being America, and Britain and eastern being Russia
It’s may be B. That makes the most sense in my opinion.
The answer is China and the Soviet Union