On December 1, 1963, when asked to comment on the assassination of John F. Kennedy, Malcolm X said that it was a case of "chickens coming home to roost". He added that "chickens coming home to roost never did make me sad; they've always made me glad."
Hepburn next appeared opposite Cary Grant in the comic thriller Charade (1963), playing a young widow pursued by several men who chase the fortune stolen by her murdered husband. The 59-year-old Grant, who had previously withdrawn from the starring male lead roles in Roman Holiday and Sabrina, was sensitive about his age difference with 34-year-old Hepburn, and was uncomfortable about the romantic interplay. To satisfy his concerns, the filmmakers agreed to alter the screenplay so that Hepburn's character was pursuing him.
An armed conflict was triggered after December 21, 1963, a period remembered by Turkish Cypriots as Bloody Christmas, when a Greek Cypriot policemen that had been called to help deal with a taxi driver refusing officers already on the scene access to check the identification documents of his customers, took out his gun upon arrival and shot and killed the taxi driver and his partner.
In the morning after the shooting, crowds gathered in protest in Northern Nicosia, likely encouraged by the TMT, without incident. On the evening of the 22nd, gunfire broke out, communication lines to the Turkish neighborhoods were cut, and the Greek Cypriot police occupied the nearby airport.
On the 23rd, a ceasefire was negotiated, but did not hold. Fighting, including automatic weapons fire, between Greek and Turkish Cypriots and militias increased in Nicosia and Larnaca. A force of Greek Cypriot irregulars led by Nikos Sampson entered the Nicosia suburb of Omorphita and engaged in heavy firing on armed, as well as by some accounts unarmed, Turkish Cypriots. The Omorphita clash has been described by Turkish Cypriots as a massacre, while this view has generally not been acknowledged by Greek Cypriots.
Further ceasefires were arranged between the two sides, but also failed. By Christmas Eve, the 24th, Britain, Greece, and Turkey had joined talks, with all sides calling for a truce.
On Christmas day, Turkish fighter jets overflew Nicosia in a show of support. Finally it was agreed to allow a force of 2,700 British soldiers to help enforce a ceasefire. In the next days, a "buffer zone" was created in Nicosia, and a British officer marked a line on a map with green ink, separating the two sides of the city, which was the beginning of the "Green Line". Fighting continued across the island for the next several weeks.