How did world war 2 start and how did it end.

Britain and France declared war on Germany on 3 September 1939, but gave no real assistance to Poland. Two weeks later, Stalin invaded eastern Poland, and on 27 September Warsaw surrendered. Organised Polish resistance ceased after another week's fighting

Explanation:

the federal constitution of the united mexican states of 1824 was enacted on october 4 of 1824, after the overthrow of the mexican empire of agustin de iturbide. in the new constitution, the republic took the name of of united mexican states. it was replaced by the federal constitution of the united mexican states in 1857.