Alt-History Waring south

This is an alt history on what would happen with two points of divergence...

1.The CSA declares independence from the UNited states, after the battle of gettysburg the Britain declares war on the USA, meaning a victory for the south in 1864. This also leads to california to become a seperate nation putting pressure on the northern colonies, who declare independence rather than becoming part of california.

2.the january uprising in poland results in a success as it gobbles up parts of the russian empire, it forms a constitution and declares independence, it then takes over the modern baltic states, russia, modern poland(from germany) and berlarus.

You can do whatever you want, just please no alien-space-bats(for those new here, thats just something to far from history)and also please don't change what people have wrote.

This alternate universe will be focused on 1870 to 1950

The CSA, california, and colonial americans all merge back into america by the end of the second world war.