Geography and climate The West Asia, east Afghanistan, the Arabian Peninsula, the north-west is a region of up to Turkey. Iran, Iraq, Saudi Arabia, the United Arab Emirates, Israel, Turkey, etc., are by West Asia. The Arabian Peninsula, has been riding the Arab plate referred to in the continental drift theory, corresponds to the former Gondwana land referred to in the continental drift theory, it is stable landmass (stable land and sea). Climate is the most areas dry climate (BS~BW, desert climate (BW) or step climate (BS)). In exceptional cases, coastal areas and Israel in Turkey, for facing the Mediterranean Sea, a Mediterranean climate, is a light rain in the summer. Tigris River and the Euphrates River, because the upstream source of water is wet area, even though there in the desert region, all year round, not exhaustion. In this way, the upstream is in the wet zone, that of the rivers flowing such as in dry areas of foreign rivers (foreign river). In other words, [the Tigris River and the Euphrates River, upstream of the water source is a foreign river in a wet area.