It is a fact that this is how the intercommunal conflict started.
Cyprus was a UK colony, and colonies were going out of fashion. Most Cypriots wanted to be liberated from colonialism as well. According to the UN resolution about decolonization (
http://www.un.org/Depts/dpi/decolonizat ... ration.htm ) "integration into an independent State" was a legitimate option for Cypriots to choose from in a democratic way.
However since the UK had strategic interests in Cyprus, they didn't want to loose Cyprus to Greece. So the British brought in Turkey (who also wanted Cyprus for her own strategic interests) and proposed to them to partition Cyprus.
Based on this agreed policy between UK and Turkey, the Turkish minority was used in a divide and rule way. They British hired TC policemen to fight against the liberation fighters, and Turkey started to propagandize the TCs with the partition "ideal". Their plan worked, and clashes started between Greek and Turkish Cypriots.
So in the end, instead of allowing Cypriots to choose how their own island would be decolonized, the British and the Turks blackmailed Greece and Cyprus with partition, and forced them to agree to the 1960 agreements which gave 1) 2
huge bases to the British and 2) veto rights along with unfairly disproportionate privileges to the the TCs (e.g. that the 18% of TCs should have the 30% of government jobs), things that Turkey would later use to create stalemates and tension in Cyprus again that then she could use as an excuse to take a part of Cyprus, as it was agreed with the UK a few years earlier.
The plan was that Turkey would invade in the mid 1960s, and this was one of the reasons that the intercommunal conflict restarted in 1963. However this did not happen because it was the wrong time for the USA (due to other political reasons during that time) who turned the red light to the Turks when they asked for permission to invade Cyprus.
Then the intercommunal conflict was over by 1968 (after both sides had an about equal amount of mostly innocent victims) and things were getting back to normal. Turkey was planning to use the intercommunal conflict as an excuse for their invasion, but the USA forced them to change plans.
So the next excuse came in 1974 when the junta of Athens, which came to power with USA/CIA help to prevent Greece from joining the communist block, was ordered by the Americans (Kissinger) to create a coup in Cyprus as well in order to overthrow the "red monk of the Mediterranean Cuba" (Makarios).
The Athens Junta sponsored coupists tried to kill Makarios (who managed to escape abroad) and then they started killing the Greek Cypriot resistance fighters. The coup had
NOTHING to do with the inter communal conflict that ended 6 years earlier, and the coupists did not touch even a single Turkish Cypriot.
Turkey saw the coup as the a great excuse to invade and finally take part of Cyprus, as she was planning for years already. They used the Treaty of Guarantee as an excuse to invade. The Treaty of Guarantee required from the "guarantors" to act together to protect the independence and sovereignty of Republic of Cyprus. However Turkey not only didn't act in a way that would restore the constitution and sovereignty in Cyprus, but on the contrary they started to butcher GCs by the 1000s and forced 200.000 to abandon their homes performing an ethnic cleansing over the norther part of Republic of Cyprus. After the Turkish invasion had started and news not only about the 1000s of dead but also about rapes of under age girls started coming out, some Greek Cypriots instead of going to fight the Turkish army they retaliated by killing some 100s of Turkish Cypriots. The invasion had as a result 6000 GCs dead and a few 100s of TC dead as well.
Since then, with the silent support of USA and UK (Turkey's baddies) the occupation continues and 100s of thousands of people suffer because of it.