I hope you will read the enlightening article [guardian.co.uk] below by Robert Ellis.
I would simply like to list the major violations of Turkey in the case of Cyprus he mentions:
[1] Turkey ratified the Hague convention of 1954 for the protection of cultural property in the event of armed conflict
[2] UN security council resolutions
[3] Treaty of guarantee from 1960 between Cyprus, Greece, Turkey and the UK
[4] Article 49.6 of the Geneva convention of 1949, which stipulates that the occupying power shall not transfer parts of its own civilian population into the territory it occupies
[5] Northern Cyprus is de facto Turkey's 82nd province, and the TRNC is regarded by the European court of human rights as "a subordinate local administration" under Turkish jurisdiction.
Turkey has only itself to blame if it is shunned by the EU | guardian.co.uk
Nov 2010
http://antifon.blogspot.com/2011/04/tur ... if-it.html
In case there is no time to read the entire article, at least read these two paragraphs:
"This is why Turkey is desperate to open direct trade with northern Cyprus, both to relieve its financial burden and as one step towards international recognition of the separatist state. Turkey perennial self-justification for maintaining its presence on the island is to consolidate the security of the Muslim Turkish community but this excuse is wearing thin."
"The most convincing reason has been advanced by the architect of Turkey's multi-dimensional foreign policy, the present foreign minister, Professor Ahmet Davutoglu, in his book Strategic Depth from 2001. Here Davutoglu states clearly: "Even if there was not one single Muslim Turk over there, Turkey would have to maintain a Cyprus question. No country could possibly be indifferent to an island like this, placed in the heart of its vital space."
"This is why reunification talks are getting nowhere, however hard Dimitris Christofias, the Greek Cypriot president, tries. The new Turkish Cypriot leader, Dervis Eroglu, unlike the former leader, Mehmet Ali Talat, is simply not interested that they should go anywhere, and takes his orders directly from Ankara. As Martin Kettle writes about the prospect of Turkey's EU membership: "the failure is predictable, disgraceful and incredibly shortsighted". And it's Turkey's fault."