I want to know the answer to the following question:
What policy could not be abandoned in 1964?
All the background I'm provided with is that "Meanwhile, by 1964, enosis was a Greek policy that could not be abandoned; Makarios and the Greek prime minister Georgios Papandreou agreed that enosis should be the ultimate aim and King Constantine wished Cyprus "a speedy union with the mother country".". Is that enough to answer the question?