What if the Cold War had three blocs?
This is the first time I'm doing this sort of thing, so I'm sorry if it's unrealistic or generally uninteresting (I prioritized it being interesting over realism generally).
Lore/PoD:
Munich Conference fails, and a war starts over Czechoslovakia, it kinda grinds out as Czech fortifications are strong, and eventually Hitler is couped by Oster, Beck and co. (North) Germany would have to give up on Czechoslovakia, and Italian opportunism on their German border meant Austria would have their old government restored under Kurt Schuschnigg, and become South Germany (annexing Bavaria, Baden and Wurttemberg). During this time period, Mussolini would go on some "adventures" and invade Albania and annexing it, and Yugoslavia, splitting the nation into two (Croatia and Serbia) and annexing Slovenia, Dalmatia and Montenegro directly (he also gives Bulgaria Macedonia). The Italian invasion of Greece is costlier, but a more distracted West allows Italian annexations of some islands and a Greek puppet regime. Stalin would invade and annex the Baltics, invade and puppet Romania (annexing Moldova in the process) and then invade Poland as the West is distracted, but after the German war is over, a furious West would rally behind Polish liberation and invade the Soviet Union. Italy would join this invasion as well, leading to Stalin seeking negotiations, as Poland and the Baltics are restored, Romania is restored under a pro-Italian government (with Moldova returned), and Mussolini gains a protectorate over Crimea. Meanwhile, the war in the Pacific is probably a bit different, but Japan still gets defeated (or economically starved out) by Anglo-Franco-American forces, one way or another. Either way, Europe is now divided into three: The Liberal North, including the US, Canada, Britain, France, Belgium, Netherlands, Luxembourg, Denmark, North Germany, Norway, Finland, Czechoslovakia, Poland, Estonia, Latvia and Lithuania, The Ultranationalist South, including Italy, Portugal, Spain, Croatia, Serbia, South Germany, Hungary, Romania, Bulgaria, Greece and Crimea, and The Soviet Union, a looming shadow in the East. Neutral nations include Ireland, Sweden, Switzerland and Turkey.
Though the process is slower, by 1960, all of the US, Britain, France, Italy and the Soviet Union have nukes.