I will try my best to answer this next time
Ecology<span> is the scientific study of interactions of organisms with one another and with the physical and chemical environment. It matters because you need to study organisms.</span>
This is an opinion question, but I believe that it is possible to seize political control over a country without oppressing the country's people. However, history has shown otherwise (Nazi Germany, British Empire) but we can use past mistakes to improve our future world.
If you would increase the number of troops to join the union, the Emancipation Proclamation would distract the Union from slavery.