All of the statements listed here are factors in the decline of Sumer.
They are all somewhat linked to each other, in that due to the failure
of the soil there was less food available to the people of Sumer -
something which had not previously ever been an issue, in fact they were
able to grow more crops than they actually needed. This of course meant
that the invaded cities were already weakened.
A unified group of countries, the Communist bloc was located
in Eastern Europe. This block had a major country in it like the Soviet Union.
The name that NATO gave to this block was Eastern Block. The other countries
that were part of this block were Poland, Romania, Bulgaria, Hungary and
several other European countries. This was a group that was led by the mighty
Stalin of USSR. Those people that were not obedient to the communist leaders
were either ousted from government jobs or were put to unimportant jobs.
Answer:
He wanted to start trade deals between the US and Japanese. He wanted Japan to open up, because the Japanese had been mainly isolated for hundreds of years.