The Cold War (Sometimes called World War III) was a World War that lasted from 1957 to 1989 with the primary forces being the USA and the USSR and later, Greater Russia. The Cold War was mostly Communism Vs Capitalism.
North America was mainly capitalist while Central America was a crazy mix of sides engaged in civil wars. The Caribbean was also engaged in civil wars while South America was mostly Capitalist and neutral. Western Europe was mainly Capitalist with lots of fighting going on in Scandinavia and Germany. Eastern Europe was Communist and the Middle East was just doing whatever it felt like. The central part of Africa was trying to stay neutral and Western Africa was Communist and was where a lot of factories were. Southern Africa was mainly Capitalist and Russia was Communist. India and China were Capitalist and South-East-Asia was mainly peaceful and Australia and New Zealand were not doing much besides inventing new sorts of sandwiches.
The USSR (1957-1959) Greater Russia (1959-1989) Eastern Poland (1957-1961) Bulgaria (1958-1989) Russian Czeshlomanianungary (1957-1980) Socialist Iran (1958-1959) Rhodesia (1962-1969) Zemlya and Severnaya (1971-1975) CongCong States (1957-1958)
The Cold War is the only war in human history that significantly changed the coastline of the world. Coastline changes are mainly in the form of bomb craters while other forms can be evaporation, islandation erosion and topographical change.
Like the rest of the world, due to kraterboden pooling the sea level around Europe dropped, draining the Strait of Gibraltar and connecting Europe to Africa. The most distinct change being Greece and the lower end of the Balkan Peninsula being ramified by the Balkan Bomb forming the Explosion islands. There was also the Jovos Bomb in Turkey and the Krabelys Bomb in Greater Russia which produced circular craters. The Baltic Sea was also cut off from the North Sea due to sea level drop and some of the explosions from the Cold War triggered volcanic activity of the coast of Europe which built up volcanoes between the Mid-Side Ridge and the Iberian Pointy Ridge and connected them, forming the IbMiAtlantic Ridge and the Confuso Islands.
Northern Asia wasn't affected that much considering it had the USSR. A Scale Six catastrophe did occur called the Baltic Catastrophe and involved the eastward movement of the Baltic plate and the growth of the Ural Mountains. The only major coastline change was Krabley's Crater and some other minor changes were growth of the islands in Zemlya and Severnaya and the shrink of the Caspian and Aral Seas.