<Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> <Tr> <Td_colspan="2"> <Ul> <Li> 1955--64 crisis <Ul> <Li> Cyprus Emergency (1955--59) </Li> <Li> Bloody Christmas (1963) </Li> <Li> Battle of Tillyria (1964) </Li> </Ul> </Li> <Li> 1974 coup </Li> <Li> 1974 Turkish invasion <Ul> <Li> Battle of Pentemili beachhead </Li> <Li> Maratha, Santalaris and Aloda massacre </Li> </Ul> </Li> <Li> 1997 Missile crisis </Li> <Li> Maritime zones dispute </Li> </Ul> </Td> </Tr> <Ul> <Li> 1955--64 crisis <Ul> <Li> Cyprus Emergency (1955--59) </Li> <Li> Bloody Christmas (1963) </Li> <Li> Battle of Tillyria (1964) </Li> </Ul> </Li> <Li> 1974 coup </Li> <Li> 1974 Turkish invasion <Ul> <Li> Battle of Pentemili beachhead </Li> <Li> Maratha, Santalaris and Aloda massacre </Li> </Ul> </Li> <Li> 1997 Missile crisis </Li> <Li> Maritime zones dispute </Li> </Ul> <Li> 1955--64 crisis <Ul> <Li> Cyprus Emergency (1955--59) </Li> <Li> Bloody Christmas (1963) </Li> <Li> Battle of Tillyria (1964) </Li> </Ul> </Li>

When did turkey invade greece cyprus and why