How did the Compromise of 1850 help save the Union?

The Compromise of 1850 was a series of laws passed in 1850 that dealt with the controversial issue of slavery in the United States. It put an end to the slave trade in Washington, D.C. and made it easier for Southern slave owners to recover runaway slaves.

Explanation:

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the fact that could also be added to column b is that during world war ii, specifically between the years 1941 and 1945, japan expanded its territory towards the indonesian territory in what was known later as part of the "pacific war". in that time, japan could conquer the philipines, singapore,   borneo, central java, malang, cebu, sumatra and various other islands of the area, therefore expanding its territory for a brief period of time.