I'll start with How Few Remain and work from there.
How Few Remain:
How Few Remain:
- Kentucky joins the CSA but remains in a constant state of de facto Civil War and most are still angry at the CSA for violating their neutrality like IOTL.
- Switch the timelines of the purchases of Cuba and northern Mexico
- Make the Mexican purchases based on the boundaries of the Departments of the Second Mexican Empire IOTL, with California, Arizona and Sonora (combined into the Confederate state of Sonora), and Chihuahua and Batopilas (combined into the Confederate state of Chihuahua) being purchased. This makes for a much cleaner Mexican border.
- The Confederacy attempts to purchase Cuba in 1880 during the Little War but Kentucky (which was already polarized) threatens to rejoin the Union as slavery was the least prevalent there and was the most industrialized state. Tennessee and North Carolina, two more states that merely tolerate slavery rather than enthused it (the former with East Tennessee, the Tennessee Valley, and the swing region of Nashville which initially voted against secession IOTL opposing this move and the latter being the most reluctant state to join the CSA IOTL and largely did so as its neighbors already did), also oppose it.
- The USA under Blaine intervenes on behalf of Kentucky and, to a lesser extent, Tennessee and threatens war if the Confederacy does not withdraw its claims from Cuba. The CSA refuses and the Confederacy and Union go to war again. The Second French Empire (which remains intact as having troops in Mexico deters Napoleon from declaring war on Prussia ITTL) joins up with the CSA but Britain stays out of it due to slavery. With French help, the CSA gains Cuba but at the expense of Kentucky which is ceded back to the Union.
- The CSA officially allies with France, leading the USA to engage in rapprochement with Great Britain
- With no unified Germany (just the North German Confederation led by Prussia), France doesn't withdraw from Fashoda and the Fashoda incident is worse than IOTL leading to Greater tensions between France and Britain
- Being successful in Mexico, France allies with Austria-Hungary and later Russia (to try and contain North Germany). At the same time, Britain forms an alliance with Italy (against A-H) and the Ottoman Empire (against Russia). North Germany officially stays neutral but plays both sides.
- The CSA is the last country in the Western Hemisphere to abolish slavery (largely in response to the opening of Ellis Island in New York Harbor in 1892 and the Confederacy's own desire to attract immigrants, the Panic of 1893, and the Congo Scandal) but follows South Africa's lead in 1913 and bans blacks from voting and purchasing land from whites, restricting blacks to homelands or reservations like OTL's Bantustans South Africa and implementing a harsh apartheid system
- The Great War breaks out in 1914 following Franz's Ferdinand's assassination but with different alliances, the war in Europe has a less obvious outcome. In North America, the Confederates and Mexicans join France against the Americans, Canadians, and British. Japan commits to its alliance with Great Britain in the Pacific.
- The Americans, Canadians, and British wins in North America in 1916 or 1917. An analog to the Mexican Revolution begins which has influences of OTL's Russian Revolution. Cuba and Texas are granted independence as US puppet states. Tennessee, Seqouyah, Houston, Chihuahua, Sonora, and California (renamed South California) are annexed into the Union outright along with parts of far northern Arkansas (into Missouri) as well as Blue Ridge Mountain and Potomac River regions in West Virginia and the Delmarva Penninsula into Maryland.