Answer:
power to negotiate with the foreign countries as individual states
Explanation:
The first general issue postage stamps went on sale in New York City, July 1, 1847. One, priced at five cents, depicted Benjamin Franklin. The other, a ten-cent stamp, pictured George Washington.
Those serbs were convicted of War crimes because they approve the policy of ethnic cleansing in the war.
Ethnic cleansing refer to the policy in which they massacre a specific ethnic groups in their society. This practice deemed as really inhumane so they had to be convicted because of that