Which one is correct?
"in central asia" or "in the central asia"?

Some examples from the web:

• A ship crash-landed in Central Asia.
• I read your paper on US policy in Central Asia.
• Kazakhstan is the largest country in Central Asia.
• One of the oldest ontinuously functioning convents in Central Asia.
• First, we must control the world's oil, especially the oil in central asia and the middle east.
• In addition, the city is regarded as the best preserved example of Islamic architecture in Central Asia.
• Both pilots served for Poland in central Asia, alongside us.
• Who want to control the water supply in Central Asia.
• The European Union wishes to play a more active political role in Central Asia.
• Kazakhstan is one of the developed countries in Central Asia.
• Subject: Recent political unrest and ensuing violence in Central Asia
• Promoting Integrated Water Resources Management and Fostering Transboundary Dialogue in Central Asia
• As you know, the general situation in Central Asia remains a matter of concern.
• The Deputy Director-General for external relations of the European Commission recently visited four republics in Central Asia.
• This uprising took place in the country with the most liberal regime in Central Asia.
• The most conspicuous example of this in Central Asia is Kyrgyzstan.
• The same goes for our other partners in Central Asia.
• In Central Asia, the EIB should focus on major energy supply and energy transport projects with cross-border implications.
• As you know there is great and constant tension between the upstream and downstream nations in central Asia involving water use.
• We need to establish more representations in these countries in Central Asia which are our neighbours.

Some examples from the web:

• Over recent years Parliament has laid down clear conditions under which we can agree to this Interim Agreement, most recently in the Central Asia strategy report by Mr Özdemir.
• With the exception of the Kyrgyz Republic, developments in the Central Asia region are alarming for more than one reason.
• in the Central Asia region: Kazakhstan, Kyrgyzstan, Uzbekistan, Tajikistan and Turkmenistan;
• whereas Turkmenistan plays an important role in the Central Asia region, so that close cooperation between it and the European Union is desirable,
• For this reason, the EU must engage actively with the provisional government, with a view to exploring and exploiting possibilities to promote good governance, the independence of the judiciary and other EU policy objectives laid down in the Central Asia Strategy.
• whereas Turkmenistan plays an important role in the Central Asia region, so that close cooperation between it and the European Union is desirable,
• Moreover, it will also promote economic growth and support sustainable development, actions against poverty, and stability in Tajikistan and the Central Asia region.
• The UK government will lose all leverage and any influence in the future of Central Asia.
• Poverty and lack of growth in the countries of Central Asia have exacerbated socio-economic tensions.
• In the Caucasus and Central Asia, there is a great danger that the prevalence will soon increase to dangerous levels.
• Accordingly, a high demand for EIB credits in the region of Central Asia can be expected.
• All the points are covered in the new EU-Central Asia Partnership Agreement for the 21st century.
• Kyrgyzstan attracts special interest from the United States and Russia because of its strategic location in the middle of Central Asia.
• I have spoken about this here more than once, particularly in respect of violations of human rights in the republics of Central Asia.
• Bart Staes, Joost Lagendijk, Matti Wuori, Per Gahrton and Marie Anne Isler Béguin, on behalf of the Verts/ALE Group, on human rights in Turkmenistan and the Central Asia republics (B5-0452/2003).
• It would send a strange political signal to completely exclude the remaining TACIS countries in the Southern Caucasus and Central Asia mentioned above.
• (2) There is a need to ensure coordination and consistency of external actions of the Union in Central Asia.
• Subject: Support for the OSCE in Central Asia
• I should like to mention three points from it: first of all in my capacity of Vice-Chairman for the delegation in Central Asia.
• For the EU, Kazakhstan should be considered the jewel in the crown of central Asia.