Qual a dificuldade geográfica de ocupação do Afeganistão E por que esse país é considerado "Cemitério dos impérios"?

- three-quarters or two-thirds..

- "the constitution provides that an amendment may be proposed either by the congress with a two-thirds majority vote in both the house of representatives and the senate or by a constitutional convention called for by two-thirds of the state legislatures."

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which empire had the greatest influence on the history and cultural development of russia?