To understand the events of the summer of 1974 you have to go back to 1973, when the Greek junta underwent an internal mini revolt. The psychopath Ioannidis took over from George Papadopoulos. Ioannidis was totally nuts and a rabid anticommunist. He decided to overthrow Makarios but failed to take into account the resistance which the Cypriots put up. Fighting was going on at various points on Cyprus until Thursday (July 15, the coup date, was a Monday).
When the junta took over in Cyprus it was frantically looking for a leader. Glafkos Clerides refused the presidency. They then went to Triantafyllides the Chief Justice who also refused. Sampson was a choice of despair and it shows how unplanned and chaotic the situation was. He was the worst possible choice, uneducated, brash, undiplomatic, and in panic himself.
Turkey invaded on Saturday morning. The Greek high command in Athens at first did no believe its own officers in Cyprus who said that the invasion was happening. They gave orders to engage only after the first bombing sorties of the Turkish air force. They took Makarios police out of jail and armed them and sent them to the front. It was another chaotic situation. People who were killing each other the day before were now trying to organise some sort of defence against the Turks. Obviously they failed and the first part of the invasion was over by Tuesday July 23 when Kyrenia fell. And that is when the shit started.
TC men were rounded up and held as hostages. Some thugs took over TC villages and played it tough, while TC thugs did the same to GCs in areas within the Turkish occupied part. Both sides started executing people in cold blood. Afania was one site of Gc massacre, Sandalaris and Maratha a site of a TC massacre.
Meanwhile the Turks were frantically reinforcing their beachead and on August 13 they presented an ultimatum. The Greek government (civilian this time, the junta had fallen), asked for 48 hours to consult.The Turks sarted Attila II on the morning of August 14.
The ferocity and disproportionate force used against the remnants of the National Guard and the civilian population was indicative of the intentions of Turkey- to terrorise the population and push them out. Which they did, so by time the offer came to move south in that British brokered exchange of populations most people fled south. It was ethnic cleansing pure and simple. The 25000 people cut off in the Karpas were soon kicked out with various pretexts and now there are a few hundred left.
That was a very short precis of what happened. There are some details which are still cloudy, like the prevention of Greek reinforcements being sent to Cyprus. Friends from Famagusta were on a ship bound for Cyprus when they were stopped south of Rhodos by the US 6th fleet and turned back. It is funny that the commander on that ship to this day refuses to admit that American ships were involved. My schoolmates who were on that ship tell me that they were stopped by two US destroyers. I believe them because I have since corroborated their account.