It depends on what "in" refers to.
If the question is geographic, i.e. Are China and the Soviet Union part of the region called the Middle East, then No. China is part of the Far East or East Asia, which is a very different region. The Soviet Union stretched from Eastern Europe to Siberia, but did not include any part of the Middle East.
If the question is about involvement, i.e. Are China and the Soviet Union involved politically with the Middle East, then, Yes. China needs an incredible amount of energy to power its economy and much of that energy comes overland from the Middle East, from countries such as Iran and Iraq. Therefore, China has a strongly developed Middle East policy. The Soviet Union had strong military involvement in the Middle East using the Arab-Israeli Conflict as a way of having proxy wars with the United States. As a result, much of Arab military craft in the 1960s-1980s was of Soviet design.
The Middle East
The Soviet Union.
The Middle East
Baghdad pact
Directly, the Russo-Finnish War and the Second World War. Indirectly, pretty much every conflict in Asia, Africa, and the Middle East during the existence of the Soviet Union.
He was the leader of the Soviet Union. The Soviet Union greatly controlled East Germany.
The Soviet Union, or USSR.
Soviet Union
The economies of China, the former Soviet Union, and the former East Germany are examples of communist economies.
what were the sings of declin in decline in the middle east and china
The Soviet Union invaded Afghanistan in 1979.
Asia has the Middle East, Far East, the central republics which recently became independent when the Soviet Union collapsed, and the Indian sucontinent.