With a POD on or after 1900, have the earth have six major powers, being...
-The United States of America
-The British Empire
-The Union of Soviet Socialist Republics
-The Empire of the Rising Sun
-An Alliance of Germany, France and Italy (NOT A THIRD RIECH)
-Brazil
And one without a nuclear war whiping out the earth, bonus points for accelerated space development.
Zor