1899, the United States declared the Open Door Policy. The Americans worried that other nations would soon divide China into formal colonies and shut out the American traders. They proposed that China's doors be open to merchants of all nations.
Reason , independence , natural environments
It's two of them, They were dependant on the USSR and They were neighboring states.
If you have to pick one, it's the first one I said.
The correct answer is D) Austria and Hungary became two states, with considerably less territory than before the war.
Post-World War I treaties affected national borders in Europe and Asia in that Austria and Hungary became two states, with considerably less territory than before the war.
It was on November 3, 1918, after the Battle of Vittorio Veneto, that many provinces that were part of the Austria-Hungary empire, decide to leave and declared their independence. Czechoslovakia declared its independence from the empire on October 28, 1918. Hungary left on October 31st. That was the end of the Austria-Hungary Empire.
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Delivering mail and collecting duties and taxes !!